One of the numerous sanctuaries on the trail. Perfume Pagoda, Vietnam http://www.terragalleria.com/vietnam/picture.viet8238.html Hiking into amphitheater. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca45187.html View of Yosemite Valley and Half-Dome from Yosemite Falls trail. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose1287.html Lodegepole pines and cliff, Yosemite Falls trail. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose2151.html Backpackers below Kearsarge Pass. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica5806.html Backpackers near a tarn below Glen Pass, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica5808.html Backpackers in valley near Rae Lakes, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica5811.html Hikers descend Forester Pass, highest point of Pacific Crest Trail. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69352.html canyon from North vista trail. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca0325.html Waterpocket Fold from Burr trail, afternoon. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care5524.html Waterpocket Fold and gravel road called Burr trail. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care5525.html Douglas Fir in Wall Street Gorge, Navajo Trail. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0847.html Glowing walls and tree along Navajo Trail. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0849.html Hoodoos seen from Queen's garden Trail. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0850.html Navajo Trail in winter. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0851.html Navajo Trail descending between Hoodoos. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0852.html Hikers in Wall Street Gorge. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0854.html Hikers descending trail in Wall Street Gorge. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0855.html Hikers on trail below Wasson Peak. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61525.html Hiker with panoramic view on Navajo Trail. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca0856.html Star trails and narrow gorge of Colorado River at Toroweap. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5492.html Backpackers on Esplanade, Thunder River and Deer Creek trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8513.html Backpackers in Surprise Valley, Thunder River and Deer Creek trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8514.html Backpacker on trail above Tapeats Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8518.html Star trails on Teton range above Jackson lake, dusk. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte0550.html Alpine flowers on the tundra along Trail Ridge road. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo0607.html Alpine flowers on tundra along Trail Ridge road. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo0609.html Alpine wildflowers and summer storm along Trail Ridge road. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo0608.html Path and historic cabin at Never Summer Ranch. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo6013.html Rain pillars along Caprock coulee trail. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro8722.html Caprock chimneys, Caprock coulee trail, North Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro8721.html Rain Pillars, Caprock coulee trail, North Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro8723.html Poplar, coast on Rock Harbor trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro0360.html Tree, slabs, and oastine on the Stoll trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro0366.html Birch trees near Mt Franklin trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro0371.html Backpacker walking on Greenstone ridge trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro1858.html Backpacker pausing on Greenstone ridge trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro1859.html Backpacker on the Appalachian Trail. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen6888.html Path leading to historic abin, Cades Cove, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm6768.html Flame Azaleas along Laurel Falls trail, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm6780.html Silversword in Haleakala crater, Sliding sands trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale1710.html Steep Ohe o gorge walls covered with tropical vegetation, Pipiwai trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale1722.html Bamboo forest along Pipiwai trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale1729.html Marsh near Ahinga trail, late afternoon. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever1950.html Tropical forest, Snake Bight trail. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever1964.html Freshwater marsh with aquatic plants and sawgrass near Ahinga trail, late afternoon. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever1951.html Mangroves giving the water a red color, Snake Bight trail. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever1962.html Egrets, alligators, ahinga, from the Ahinga trail. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever1943.html Brown bears encounters on trail are frequent at Brooks camp. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0096.html Tents at Trail Camp and Keeler Needles at dawn, Inyo National Forest. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca69392.html Summit ridge of Mont-Blanc and Bosses ridge with climber's trail in the snow, France and Italy. http://www.terragalleria.com/mountain/mountain-image.alps3106.html This time, I had to painfully break the trail, which was swept by the recent storm. It is hard work when you are by yourself. Denali, Alaska http://www.terragalleria.com/mountain/mountain-image.mcki3362.html Arc de Triomphe and Champs Elysees at night with car light trails. Paris, France http://www.terragalleria.com/europe/paris/champs-elysees/picture.fran2841.html Light trails on the Grand Canal at night near the Rialto Bridge. Venice, Veneto, Italy http://www.terragalleria.com/europe/italy/venice/picture.ital7109.html Ascending Ayers Rock. Uluru-Kata Tjuta National Park, Northern Territories, Australia http://www.terragalleria.com/pacific/australia/ayers-rock/picture.aust6175.html Trail markers on the top of Ayers Rock. Uluru-Kata Tjuta National Park, Northern Territories, Australia http://www.terragalleria.com/pacific/australia/ayers-rock/picture.aust2511.html Trail, stream, and Longs Peak. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57043.html Women returning from the fields. Baisha, Yunnan, China http://www.terragalleria.com/asia/china/baisha/picture.chin4909.html Longs Peak trail. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57047.html Trail and historic barns, Florissant Fossil Beds National Monument. Colorado, USA http://www.terragalleria.com/america/colorado/colorado-south/picture.usco9083.html Backcountry trail. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67290.html Buttes at dawn with short start trails. Monument Valley Tribal Park, Navajo Nation, Arizona and Utah, USA http://www.terragalleria.com/america/arizona/monument-valley/picture.usaz9001.html Boulder and striated Sandstone, Burr Trail, Grand Staircase Escalante National Monument. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut9025.html Tall multicolored cliffs, Burr Trail, Grand Staircase Escalante National Monument. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut9026.html Bristlecone Pine tree, late afternoon, Discovery Trail, Schulman Grove. California, USA http://www.terragalleria.com/california/picture.usca9914.html Gnarled Bristlecone Pine trees at sunset, Discovery Trail, Schulman Grove. California, USA http://www.terragalleria.com/california/picture.usca9915.html Hiker on trail towards Round Top, late afternoon. Mokelumne Wilderness, Eldorado National Forest, California, USA http://www.terragalleria.com/california/picture.usca9786.html Backpacker on trail towards Round Top. Mokelumne Wilderness, Eldorado National Forest, California, USA http://www.terragalleria.com/california/picture.usca9787.html Pack train of horses, Bishop Pass trail, Inyo National Forest. California, USA http://www.terragalleria.com/california/picture.usca9876.html Backpacker on Bishop Pass trail, Inyo National Forest. California, USA http://www.terragalleria.com/california/picture.usca9883.html Rocks and trail in Bear Gulch Caves. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca9442.html Pathway and stairs, Alum Rock Park. San Jose, California, USA http://www.terragalleria.com/california/picture.usca30007.html Hiker on trail at the summit of Mission Peak, Mission Peak Regional Park. California, USA http://www.terragalleria.com/california/picture.usca9448.html Summit trail after a snow-storm, Mt Diablo State Park. California, USA http://www.terragalleria.com/california/picture.usca9464.html Summit trail after a snow-storm, Mt Diablo State Park. California, USA http://www.terragalleria.com/california/picture.usca9465.html Group of Hikers on a distant trail, Mt Diablo State Park. California, USA http://www.terragalleria.com/california/picture.usca10089.html Chasm Lake trail. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57042.html Dry cultivated terraces. Vietnam http://www.terragalleria.com/vietnam/picture.viet7916.html Star trails above the Mar Saba Monastery. West Bank, Occupied Territories (Israel) http://www.terragalleria.com/middle-east/israel/west-bank/picture.isra10259.html Family walking on forest trail. Olympic National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.olym30153.html Hikers on the Chesler Park trail, the Needles. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany10654.html Backpacker going up Nidever canyon trail, San Miguel Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis10715.html Hikers on trail to Point Bennett, San Miguel Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis10723.html Hiker on trail. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30519.html Tourists look at redwood trees. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30523.html Tourists walking on trail amongst redwood trees. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30526.html Tourists near the tree named Mother of the Forest, a 329 foot high tree. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30520.html Visitor standing at the base of tall redwood trees. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30539.html Tourists standing amongst redwood trees. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30525.html Tourists amongst redwood trees. Big Basin Redwoods State Park, California, USA http://www.terragalleria.com/california/picture.usca30527.html Chinatown gate with trail of lights at night. Victoria, British Columbia, Canada http://www.terragalleria.com/north-america/canada/victoria/picture.cabc10867.html Boats in inner harbor with a trail of lights and parliament building lights. Victoria, British Columbia, Canada http://www.terragalleria.com/north-america/canada/victoria/picture.cabc10865.html Boardwalk, South Beach trail. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc30238.html Boardwalk and trees in rain forest. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc10897.html Boardwalk leading to South Beach. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc10923.html Boardwalk in rain forest. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc30247.html Western Hemlock, red cedars, and firs on the trail to Schooner Point. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc30250.html Tandem bicyclist on the trail around Stanley Park. Vancouver, British Columbia, Canada http://www.terragalleria.com/north-america/canada/vancouver/picture.cabc30445.html Treetop trail. Vancouver, British Columbia, Canada http://www.terragalleria.com/north-america/canada/vancouver/picture.cabc30405.html Treetop trail. Vancouver, British Columbia, Canada http://www.terragalleria.com/north-america/canada/vancouver/picture.cabc30407.html Kid on treetop trail. Vancouver, British Columbia, Canada http://www.terragalleria.com/north-america/canada/vancouver/picture.cabc30408.html Boardwalk in rain forest. Pacific Rim National Park, Vancouver Island, British Columbia, Canada http://www.terragalleria.com/north-america/canada/pacific-rim/picture.cabc10896.html Uphill paved street by night with light trail. Zacatecas, Mexico http://www.terragalleria.com/north-america/mexico/zacatecas/picture.mexi32299.html Street by night with light trails. Zacatecas, Mexico http://www.terragalleria.com/north-america/mexico/zacatecas/picture.mexi32241.html Street by night with light trails. Zacatecas, Mexico http://www.terragalleria.com/north-america/mexico/zacatecas/picture.mexi32242.html Women climbing a staircase on the Diamond Head summit trail. Oahu island, Hawaii, USA http://www.terragalleria.com/pacific/oahu/oahu-south-east/picture.hawa33157.html Tourist climbing a staircase on the Diamond Head summit trail. Oahu island, Hawaii, USA http://www.terragalleria.com/pacific/oahu/oahu-south-east/picture.hawa33168.html Tourists take a photo on the last steps of the Diamond Head crater summit trail. Oahu island, Hawaii, USA http://www.terragalleria.com/pacific/oahu/oahu-south-east/picture.hawa33167.html Kalalau Valley and tree, from the Pihea Trail, late afternoon. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa33385.html Lush Hills above Kalalau Valley, seen from the Pihea Trail, late afternoon. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa33386.html Wildflowers, Sheephole Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca33483.html Wildflowers and desert mountains, Sheephole Valley Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca33484.html Hillside in spring with desert annual flowers, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32842.html Cactus on hillside in spring, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32841.html Tall saguaro cactus (scientific name: Carnegiea gigantea), Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32844.html Saguaro cacti on hillside, Hugh Norris Trail, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32846.html Hiker and saguaro cactus, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32843.html Hiking down Hugh Norris Trail amongst saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32845.html Hikers descending Hugh Norris Trail amongst saguaro cactus, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32848.html Saguaro cactus at sunset, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32851.html Hikers looking at Angel Glacier and Cavell Glacier. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33806.html Terminal moraine with path leading to Athabasca Glacier. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33749.html Road and trail leading to Athabasca Glacier. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33751.html Medicine Lake, afternoon. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33809.html Hikers on trail below the face of Mt Edith Cavell. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33789.html Hiker on a trail below Angel Glacier. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33801.html Woman hiking on trail near Mt Edith Cavell. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33805.html Hikers look at Angel Glacier, late morning. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33804.html Hikers sitting in front of Mt Edith Cavell next to trail. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33802.html Hikers looking at a hanging glacier on Mt Edith Cavell. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33803.html Hikers on trail above Lake Josephine. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34104.html Group hiking on the Grinnell Glacier trail. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34107.html Interpretative trail and center at the top of the cliff, Head-Smashed-In Buffalo Jump. Alberta, Canada http://www.terragalleria.com/north-america/canada/alberta-misc/picture.caab34008.html Hiking down the Grinnell Glacier trail, afternoon. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34114.html Roadside waterfall and light trail, Going-to-the-Sun road. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34072.html Walking under a small waterfall on the Grinnell Glacier trail. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34108.html Hikers on trail overlooking Grinnell Lake. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34111.html Switchback on trail, with Grinnel Lake and Josephine Lake in the background. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34116.html Many Glacier Valley with Grinnell Lake and Josephine Lake. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34115.html Hikers on trail amongst wildflowers near Hidden Lake. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34192.html Couple hiking on trail amongst wildflowers near Hidden Lake. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34186.html Family hiking on trail amongst wildflowers near Hidden Lake. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34193.html Backpacker and peak near Logan Pass. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34194.html Trail near Logan Pass. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac34195.html Hang gliders soaring above hikers, Fort Funston, late afternoon. San Francisco, California, USA http://www.terragalleria.com/california/picture.usca34233.html Traffic light trails on Tower Bridge, dusk. London, England, United Kingdom http://www.terragalleria.com/europe/london/tower-bridge/picture.uken35585.html Children running down a trail leading to gazebo. Kew Royal Botanical Gardens, London, England, United Kingdom http://www.terragalleria.com/europe/london/kew-gardens/picture.uken35795.html Residents visiting Joseph Grant Park after a rare snowfall. San Jose, California, USA http://www.terragalleria.com/california/picture.usca34956.html Families visiting Joseph Grant Park after a rare snowfall. San Jose, California, USA http://www.terragalleria.com/california/picture.usca34952.html Trail in Joseph Grant Park after a rare snowfall. San Jose, California, USA http://www.terragalleria.com/california/picture.usca34953.html Hills and verdant alpine meadows, seen from Harding Icefield trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36782.html Harding Icefield trail passing through a young forest. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36773.html View from the Harding Icefield trail at sunset. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36683.html Exit Glacier trail with marker showing glacial retreat. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36766.html Hikers on Harding Icefield trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36777.html Hiking surrounded by wildflowers on Harding Icefield trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36779.html Women carrying infants on trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36781.html Women Park rangers on trail during a field study. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36775.html Mountains with snowboarder hiking down on snow-covered trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36708.html Mountains and sea of clouds, hiker on snow-covered trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36709.html Couple hiking down Harding Icefied trail, late afternoon. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36670.html Two people hiking down Harding Ice Field trail. Kenai Fjords National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.kefj36671.html People jogging on trail in the foothills. Stanford University, California, USA http://www.terragalleria.com/california/picture.usca35238.html Women walking on trail, Stanford academic preserve. Stanford University, California, USA http://www.terragalleria.com/california/picture.usca35242.html Group of hikers on faint trail, Sunol Regional Park. California, USA http://www.terragalleria.com/california/picture.usca35147.html Trail through forest, Bay Canh Island, Con Dao National Park. Con Dao Islands, Vietnam http://www.terragalleria.com/vietnam/picture.viet62153.html Hiker on trail amongst fall colors, Hot Spring Mountain. Hot Springs National Park, Arkansas, USA. http://www.terragalleria.com/parks/np-image.hosp38300.html Trail and trees in fall colors, Gulpha Gorge. Hot Springs National Park, Arkansas, USA. http://www.terragalleria.com/parks/np-image.hosp38338.html Built trail and fall colors, Hot Spring Mountain. Hot Springs National Park, Arkansas, USA. http://www.terragalleria.com/parks/np-image.hosp38299.html Stone steps on trail in forest with fall foliage, Gulpha Gorge. Hot Springs National Park, Arkansas, USA. http://www.terragalleria.com/parks/np-image.hosp38344.html Tsarap River valley, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11474.html People ascending a trail past a chorten below Phuktal, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11460.html Women on trail near Padum, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11457.html Barren hills with figures walking towards Karsha monastery, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11513.html Group of people on narrow mountain trail with yaks, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11458.html Chorten, trail, and river valley, Zanskar, Jammu and Kashmir. India http://www.terragalleria.com/asia/india/ladakh/picture.indi11484.html Boardwalk, Painted Cove Trail. John Day Fossils Bed National Monument, Oregon, USA http://www.terragalleria.com/america/oregon/john-day/picture.usor37565.html Hiker on trail above low fog in Silicon Valley, Sierra Vista Open Space Preserve. San Jose, California, USA http://www.terragalleria.com/california/picture.usca70255.html Father and son on trail above Long Lake, John Muir Wilderness. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.usca39828.html Hiking on trail, Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39685.html Close view of hikers, Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39719.html Hikers looking at map and pointing, Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39715.html Hikers and Mt Giraud, Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39717.html Hiker silhouetted, lower Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39721.html Man riding horse and Langille Peak, Le Conte Canyon. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39768.html Pack horses on trail above Le Conte Canyon. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39735.html Man driving a pack of horses on trail, lower Dusy Basin. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.kica39742.html Hikers below Bishop Pass, John Muir Wilderness. Kings Canyon National Park, California http://www.terragalleria.com/mountain/mountain-image.usca39831.html Hiking down Mt Whitney in cold conditions. California http://www.terragalleria.com/mountain/mountain-image.sequ11555.html Descending Mt Whitney trail near sunset. California http://www.terragalleria.com/mountain/mountain-image.sequ11574.html Hiking down Mt Whitney at sunset. California http://www.terragalleria.com/mountain/mountain-image.sequ11556.html Frozen Trail Camp Pond and Mt Whitney chain. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ11584.html Trail Camp Pond in late November. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ11583.html Woman crossing stream on rocks, John Muir Wilderness. California, USA http://www.terragalleria.com/california/picture.usca39837.html Ice on lake near Trail Camp, Inyo National Forest. California, USA http://www.terragalleria.com/california/picture.sequ11582.html Valley and Long Lake, John Muir Wilderness. California, USA http://www.terragalleria.com/california/picture.usca39843.html Backpackers descending from Bishop Pass, John Muir Wilderness. California, USA http://www.terragalleria.com/california/picture.usca39829.html Trail covered with fallen leaves. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39855.html Paved trail and forest in fall foliage. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39881.html Trail leading to historic cave entrance in the fall. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39882.html Trail in autumn forest. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39858.html Trail with fallen leaves. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39877.html Davis House, Mountain Farm Museum, North Carolina. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm39951.html Glowing vent and star trails, Halemaumau crater. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo49496.html Hikers standing on Mist Trail below Vernal Fall. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose46548.html Canyon from North vista trail. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca20063.html Zion Canyon from West Rim Trail, stormy evening. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion20239.html Sky trails at sunset. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ21294.html canyon from North vista trail. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca20062.html Cove on the Stoll trail. Isle Royale National Park, Michigan, USA. http://www.terragalleria.com/parks/np-image.isro20404.html Alpine tundra near Trail Ridge Road in summer. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo20684.html Star trails and Teton range. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte21289.html Brightly colored cinder in Haleakala crater from Sliding sands trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale20921.html Bamboo forest along Pipiwai trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale20927.html Old Bristlecone Pine trees and moon at sunset, Discovery Trail, Schulman Grove. California, USA http://www.terragalleria.com/california/picture.usca20143.html Traffic light trails and Excalibur casino at night. Las Vegas, Nevada, USA http://www.terragalleria.com/america/nevada/las-vegas/picture.usnv40669.html Traffic light trails and New York New York casino at night. Las Vegas, Nevada, USA http://www.terragalleria.com/america/nevada/las-vegas/picture.usnv40664.html Street with light trails left by cars. Lyon, France http://www.terragalleria.com/europe/france/lyon/picture.fran41707.html Forest trail with boardwalk, Isle Au Haut. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46089.html Hikers walking through rainbow, Mist Trail. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose46546.html Les Invalides hospital and chapel dome with light trails from traffic. Paris, France http://www.terragalleria.com/europe/paris/invalides-orsay/picture.fran42396.html Coastline seen from Goat Trail, Isle Au Haut. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46101.html Star trails over Fajada Butte. Chaco Culture National Historic Park, New Mexico, USA http://www.terragalleria.com/america/new-mexico/chaco-canyon/picture.usnm44075.html Family hiking on trail towards Bridalveil Falls in the spring. Telluride, Colorado, USA http://www.terragalleria.com/america/colorado/telluride/picture.usco44187.html Boardwalk, Atlantic White Cedar swamp trail, Cape Cod National Seashore. Cape Cod, Massachussets, USA http://www.terragalleria.com/america/massachusetts/eastham-ma/picture.usma45761.html River Loop trail, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca47823.html Trail ascending in forest over stones. Baxter State Park, Maine, USA http://www.terragalleria.com/america/maine/baxter-state-park/picture.usme44558.html Forest and undergrowth in autumn. Baxter State Park, Maine, USA http://www.terragalleria.com/america/maine/baxter-state-park/picture.usme44556.html Trail in autumn forest. Baxter State Park, Maine, USA http://www.terragalleria.com/america/maine/baxter-state-park/picture.usme44557.html Steep trail paved irregularly with stones. Baxter State Park, Maine, USA http://www.terragalleria.com/america/maine/baxter-state-park/picture.usme44559.html Hikers descend steep trail in forest. Baxter State Park, Maine, USA http://www.terragalleria.com/america/maine/baxter-state-park/picture.usme44560.html Backpack and marker for last 100 miles, wildest of Appalachian trail. Maine, USA http://www.terragalleria.com/america/maine/moosehead-lake/picture.usme44440.html Backpackers hiking into autumn woods at Appalachian trail marker. Maine, USA http://www.terragalleria.com/america/maine/moosehead-lake/picture.usme44442.html Overgrown road. Allagash Wilderness Waterway, Maine, USA http://www.terragalleria.com/america/maine/allagash-wilderness/picture.usme44629.html Tucson Mountains from Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu45092.html Cairn on trail, Isle Au Haut. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46091.html Star trails above coast, Schoodic Peninsula. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46114.html Hiking trail below hoodoos. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca45182.html Carriage road. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44793.html Trail marker signs in the fall. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44792.html Trail in autumn on Jordan Pond shores. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44835.html Trail in the fall on the shore of Jordan Pond. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44837.html Boardwalk in wet forest environment. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44813.html Boardwalk in forest. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44811.html Family hiking on boardwalk. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44809.html Hikers on shore of Jordan Pond. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44829.html Boardwalk on shores of Jordan Pond. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad44814.html Crooked River and Dihedrals. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45016.html Crooked River and cliffs. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45022.html Bend of the Crooked River and Morning Glory Wall. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45023.html Ryolite cliffs. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45026.html Crooked River valley and rock walls. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45024.html Mountain biking on teh Wolf Tree Trail. Smith Rock State Park, Oregon, USA http://www.terragalleria.com/america/oregon/smith-rock/picture.usor45025.html Trail and forest , Van Trump creek. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora47619.html Signs at trail junction, Isle Au Haut. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46090.html Backpackers on Mist Trail. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose46549.html Gliding rocks and trails the Racetrack playa. Death Valley National Park, California, USA. http://www.terragalleria.com/parks/np-image.deva45246.html Hiker at the base of hoodoos. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca45179.html Path in forest, Franconia Notch State Park. New Hampshire, USA http://www.terragalleria.com/america/new-hampshire/white-mountains-nh/picture.usnh45379.html Trail in forest, Franconia Notch State Park. New Hampshire, USA http://www.terragalleria.com/america/new-hampshire/white-mountains-nh/picture.usnh45380.html Hiker on trail in the spring, Santa Cruz Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis45582.html Smugglers Road through green hills in the spring, Santa Cruz Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis45576.html Winding dirt road and ocean, Santa Cruz Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis45580.html Dirt road through coastal hills, Santa Cruz Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis45581.html Battle Road Trail and tavern sign, Minute Man National Historical Park. Massachussets, USA http://www.terragalleria.com/america/massachusetts/lexington-concord-ma/picture.usma45629.html Comet Falls trail. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora47620.html Bald Cypress with Spanish Moss near Tamiami Trail, Big Cypress National Preserve. Florida, USA http://www.terragalleria.com/america/florida/florida-misc/picture.usfl48078.html Trail in rainforest, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca47819.html Steep path with ropes, Railay. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48263.html Hiker on steep trail, Laem Phra Nang, Rai Leh. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48275.html Night sky with star trails, Schoodic Peninsula. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad46115.html Women backpacking on John Muir Trail below Tressider Peak. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose46942.html Lush wildflowers, Cathedral Fork. Yosemite National Park, California, USA. http://www.terragalleria.com/parks/np-image.yose46933.html Cypress reflected in channel along Tamiami Trail, Big Cypress National Preserve. Florida, USA http://www.terragalleria.com/america/florida/florida-misc/picture.usfl48074.html Orchid, Kalalau trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49892.html Trail in forest, Waipio Valley. Big Island, Hawaii, USA http://www.terragalleria.com/pacific/hawaii-big-island/waipio-valley/picture.hawa49563.html Coastal forest, Waipio Valley. Big Island, Hawaii, USA http://www.terragalleria.com/pacific/hawaii-big-island/waipio-valley/picture.hawa49564.html Telescopes and star trails. Mauna Kea, Big Island, Hawaii, USA http://www.terragalleria.com/pacific/hawaii-big-island/mauna-kea/picture.hawa49619.html Trail through bamboo canopy. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale49823.html Trail through bamboo forest. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale49824.html Bamboo lined path - Pipiwai Trail. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale49828.html Na Pali Cliffs, seen from Pihea Trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49943.html Tropical vegetation along Kalalau trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49889.html Ocean view from Kalalau trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49878.html Hiking Kalalau trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49880.html Hikers on Kalalau trail, Na Pali coast. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49876.html Kalalau trail. Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/na-pali-coast/picture.hawa49890.html Blooming dogwood and grove of sequoia trees, Hazelwood trail. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ50072.html Trail, Almaden Quicksilver Park. San Jose, California, USA http://www.terragalleria.com/california/picture.usca51099.html Path on crest of Evergreen Hills. San Jose, California, USA http://www.terragalleria.com/california/picture.usca51052.html Long exposure traffic trails on busy intersection from above at night. Ho Chi Minh City, Vietnam http://www.terragalleria.com/vietnam/picture.viet50571.html Light trails and Municipal Theater at night. Ho Chi Minh City, Vietnam http://www.terragalleria.com/vietnam/picture.viet50292.html Sunrise area trails. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora50912.html Moonlit sequoia and star trails. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica51478.html Trail in pine forest. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica51453.html Hikers on trail, Mt Namsan. Gyeongju, South Korea http://www.terragalleria.com/asia/south-korea/gyeongju/picture.skor51907.html Monk and hikers on trail, Namsan Mountain. Gyeongju, South Korea http://www.terragalleria.com/asia/south-korea/gyeongju/picture.skor51910.html Couple hiking holding hands in fog. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51983.html Steps of Eorimok trail, Hallasan National Park. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51972.html Hikers on Eorimok trail, Mt Halla. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51973.html Hiking the Eorimok trail under frozen trees, Mt Halla. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51975.html Boardwalk and fog, Eorimok trail, Mount Halla. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51988.html Backpackers on trail in fog, Hallasan. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51984.html Boardwalk trail in frozen landscape, Hallasan. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51989.html Frozen path and fog, Yeongsil trail, Hallasan. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51993.html Frosted trees, Yeongsil trail, Mt Halla. Jeju Island, South Korea http://www.terragalleria.com/asia/south-korea/jeju-island/picture.skor51998.html Reno Arch at night with light trails. Reno, Nevada, USA http://www.terragalleria.com/america/nevada/reno/picture.usnv52214.html Dog mushing team on forest trail. Chena Hot Springs, Alaska, USA http://www.terragalleria.com/america/alaska/chena-hot-springs/picture.alas52545.html Tourists in first grotto, Surprise Cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet54421.html Visitor in redwood forest. Muir Woods National Monument, California, USA http://www.terragalleria.com/california/picture.usca51129.html Hikers on rugged section of High Peaks trail. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53328.html Badlands and star trails. Badlands National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.badl56737.html Trail through Cathedral Grove. Muir Woods National Monument, California, USA http://www.terragalleria.com/california/picture.usca51136.html Trail passing under overhanging rock. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53325.html High Peaks trail. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53336.html High Peaks trails with stairs carved in stone. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53322.html Multicolored lights, Surprise Cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet54426.html Trail, Warner Valley. Lassen Volcanic National Park, California, USA. http://www.terragalleria.com/parks/np-image.lavo57302.html Huge underground chamber, Sung Sot Cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet54423.html Trail overlooking Colorado River. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany53789.html Anhinga Trail, Royal Palms Visitor Center. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever56589.html High clearance four-wheel-drive vehicle on the Flint Trail, Orange Cliffs Unit, Glen Canyon National Recreation Area, Utah. USA http://www.terragalleria.com/america/utah/glen-canyon/picture.cany57587.html Woman looking at tall redwood trees. Muir Woods National Monument, California, USA http://www.terragalleria.com/california/picture.usca51133.html Hikers approaching cliff with steps carved in stone. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53330.html Guadalupe Peak Trail crossing higher elevation forest. Guadalupe Mountains National Park, Texas, USA. http://www.terragalleria.com/parks/np-image.guma52634.html Soft grass-covered trail, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56980.html Hiker on trail above Pine Spring Canyon. Guadalupe Mountains National Park, Texas, USA. http://www.terragalleria.com/parks/np-image.guma52686.html Guadalupe Peak Trail. Guadalupe Mountains National Park, Texas, USA. http://www.terragalleria.com/parks/np-image.guma52632.html Trail on narrow ledge. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn53324.html Trail, Convoy Point. Biscayne National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.bisc56460.html Woman hiker clinging to cable on Hidden Canyon trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion61859.html Park visitor looking, Anhinga Trail. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever56597.html Hikers on steep trail to Dollhouse from Spanish Bottom. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany53788.html Park visitor looking from Navajo trail. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca53574.html Tourists walking in cavernous chamber, Sungsot cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet54427.html Pathway, Sung Sot (Surprise) Cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet54425.html Grassy trail, early morning, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56962.html Trail through meadow, cottowoods and distant badlands, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56961.html Ancient trail, Kaloko-Honokohau National Historical Park. Hawaii, USA http://www.terragalleria.com/pacific/hawaii-big-island/kailua-kona/picture.hawa55803.html Hiker stepping down on primitive stairs, Maze District. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany57625.html Faint trail at dusk, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56959.html Frost along Bench Trail. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn54739.html Trail passengers see through windows. Taiwan http://www.terragalleria.com/asia/taiwan/taiwan-misc/picture.taiw55491.html Cliffside trail, Taroko Gorge. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55286.html Wen Wu temple at night with light trails from boats. Sun Moon Lake, Taiwan http://www.terragalleria.com/asia/taiwan/sun-moon-lake/picture.taiw55337.html Door and tunnel, Changchun trail. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55276.html Narrow trail under rock overhang, Taroko Gorge. Taroko National Park, Taiwan http://www.terragalleria.com/asia/taiwan/taroko/picture.taiw55287.html Trail Ridge Road and Poudre Lake. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo57003.html Molten lava flow with star trails. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55734.html Backpacker entering park through Observatory Trail. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55700.html Well marked portion of Mauna Loa summit trail. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55689.html Hiker descending from Mauna Loa summit next to sign. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55688.html Kīlauea Iki Trail in rainforest. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55618.html Trail through olivine hill bordering aa lava. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55697.html Subtropical swamp vegetation, Tamiami Trail. Florida, USA http://www.terragalleria.com/america/florida/florida-misc/picture.usfl56620.html Kīlauea Iki crater and rainbow. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55620.html Kīlauea Iki crater floor. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55621.html Giant ferns bordering Kīlauea Iki Trail. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo55619.html Carts, production trails, and stages at dusk, Paramount lot. Hollywood, Los Angeles, California, USA http://www.terragalleria.com/california/picture.usca55945.html South Wilderness trail. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56205.html Lookout on North Chalone Peak at dusk. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56237.html Condor Gulch Trail through oak forest. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn55860.html Hiker on trail in spring. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn55843.html Juniper Canyon trail in spring. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn55841.html Gate on pig fence. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56210.html Pig fence climbing up to Chalone Peak. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56211.html Looking down boundary fence. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56213.html Pig fence climbing steep hill. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56215.html Looking down pig exclusion fence. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56216.html Steep hill and pig exclusion fence. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn56217.html Dong Khoi street at night with light trails and decorations. Ho Chi Minh City, Vietnam http://www.terragalleria.com/vietnam/picture.viet54721.html Trail through grasses, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56952.html Trail winding on verdant hills, Pacheco State Park. California, USA http://www.terragalleria.com/california/picture.usca60828.html Traffic circle with light trails, Rex Hotel and City Hall. Ho Chi Minh City, Vietnam http://www.terragalleria.com/vietnam/picture.viet54640.html Traffic light trails and tall trees next to Van Hoa Park. Ho Chi Minh City, Vietnam http://www.terragalleria.com/vietnam/picture.viet54720.html Visitor looking, Anhinga Trail boardwalk. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever56595.html Ferns and pine forest, Wildcat Canyon Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63061.html Steep switchbacks of the Flint Trail, Orange Cliffs Unit, Glen Canyon National Recreation Area, Utah. USA http://www.terragalleria.com/america/utah/glen-canyon/picture.cany57585.html Trail and Navajo Dome. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care57813.html Caprock coulee trail. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56940.html Jeep caravan negotiates hairpin turn on the Flint Trail, Orange Cliffs Unit, Glen Canyon National Recreation Area, Utah. USA http://www.terragalleria.com/america/utah/glen-canyon/picture.cany57586.html Trail, tall grasses, and cottonwoods, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56950.html Grassy trail, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56949.html Overgrown trail in late afternoon, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56948.html Grassy faint trail and badlands, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56978.html Trail overgrown with grasses, Elkhorn Ranch Unit. Theodore Roosevelt National Park, North Dakota, USA. http://www.terragalleria.com/parks/np-image.thro56979.html Trail winding in prairie next to butte. Badlands National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.badl56759.html Hikers on Medicine Root Trail. Badlands National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.badl56771.html Castle Trail. Badlands National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.badl56758.html Primitive trail on natural slab. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care57814.html Cleetwood Cove trail and deck. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57372.html Park visitor looking, Wingate Cliffs at Flint Trail overlook. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany57584.html Trail near Sunset Point. Capitol Reef National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.care57803.html Hikers on Angels Landing Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63021.html Star trails over Crater Lake and Wizard Island. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57360.html Trail junction and signs, Wizard Island. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57411.html Wizard Island summit trail. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57413.html Mount Scott trail. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57336.html Hiking Cleetwood Cove trail. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla57376.html Trail and Enderts Beach. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61160.html Late summer wildflowers and mountains, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64519.html Distant hikers on Hidden Canyon trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion61860.html Castle Trail, Badlands National Park. http://www.terragalleria.com/studio/picture.sand58854.html Observatory trail, Hawaii Volcanoes National Park. http://www.terragalleria.com/studio/picture.sand58873.html Tree trunks, Blind Ash Bay Trail. Voyageurs National Park, Minnesota, USA. http://www.terragalleria.com/parks/np-image.voya64025.html Meadow with fireweed, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64516.html Cactus, Rincon Mountains, and star trails at night. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61490.html Rim Overlook trail, Capitol Reef National Park. http://www.terragalleria.com/studio/picture.sand58861.html Irely Lake Trail in autumn, North Fork. Olympic National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.olym60678.html Trail in autumn Hoh Rain Forest. Olympic National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.olym60728.html Backpacker, Escalante Route trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca59416.html Backpackers, Escalante Route trail. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca59417.html White Hill Trail interpretive sign. Haleakala National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.hale69897.html Narrow trail in dark forest, Brooks Camp. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63690.html Trail in dense forest, Brooks Camp. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63691.html Backpackers on West Rim Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63004.html Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61521.html Trail cut into Echo Canyon. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62069.html West Rim Trail into Zion Wilderness. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62031.html Rincon Peak at night with star trails. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61456.html Hiker on John Muir Trail below Forester Pass. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69357.html Trail, Painted Desert. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo59524.html Dry Chalone Creek along Old Pinnacles Trail in autumn. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn59581.html Balconies Cave trail. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.pinn59593.html Distant view of Hidden Canyon with trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62062.html Distant view of Hidden Canyon trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62061.html Hikers descend West Rim Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63902.html Angels Landing from Angels Landing Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63892.html Backpackers on West Rim Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63900.html Flowering meadown in late summer, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64523.html Table Mountain Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64530.html Hiker descending Table Mountain Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64531.html Visitor looking, Valley View trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu61571.html Zion Canyon from Angels Landing trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63893.html Basin with wildflowers, Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64536.html Sunset from Highline trail. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac62559.html Hikers approaching Table Mountain off trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64529.html Aspen and mountain in late summer, Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64542.html Wildflowers and valley from Garnet Canyon Trail. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte64417.html Trail and luch hills, Pacheco State Park. California, USA http://www.terragalleria.com/california/picture.usca60829.html Fireweed and mountains, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64518.html Trail and overgrown rock wall. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60151.html Soft coral, Trunk Bay underwater trail interpretive sign. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60343.html Trail in dry tropical forest. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60169.html Reef Bay Trail petroglyphs. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60143.html Reef Bay Trail petroglyphs and rock wall. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60145.html Reef Bay trail. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60138.html Petroglyph Trail. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60156.html Trail bordered by rock wall. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60150.html Trail and plants growing on rock wall. Virgin Islands National Park, US Virgin Islands. http://www.terragalleria.com/parks/np-image.viis60152.html Forest trail in autumn, Ohanapecosh. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora60627.html Trail in Ohanapecosh forest. Mount Rainier National Park, Washington, USA. http://www.terragalleria.com/parks/np-image.mora60629.html Close-up of grasses on dunes with trails left by tip motion. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67311.html Dense wildflowers and trees, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64517.html Meadow in late summer, Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64541.html Meadows and mountains, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64520.html Hikers on East Rim trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion62066.html Hikers on Face Trail surrounded by wildflowers. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64524.html Cherry Canyon Trail, Santa Rosa Island. Channel Islands National Park, California, USA. http://www.terragalleria.com/parks/np-image.chis61632.html Hiker between giant redwoods, Boy Scout Tree trail, Jedediah Smith Redwoods State Park. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61134.html Visitor looking, Boy Scout Tree trail, Jedediah Smith Redwoods State Park. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61135.html James Irwing Trail, Prairie Creek Redwoods State Park. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61236.html Bridge, James Irwing Trail, Prairie Creek Redwoods State Park. Redwood National Park, California, USA. http://www.terragalleria.com/parks/np-image.redw61233.html Hikers in wildflowers meadows, Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64533.html Wildflowers and stream, Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64537.html Trail and observation tower, Shark Valley. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever60065.html Trail and tram road, Shark Valley. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever60062.html Tropical hardwood forest, Bobcat Boardwalk Trail, Shark Valley. Everglades National Park, Florida, USA. http://www.terragalleria.com/parks/np-image.ever60046.html Thunder Creek trail, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60475.html Epiphytic moss on trees, Lake Ross trail, North Cascades National Park Service Complex. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60473.html Fall foliage along Agnes Gorge trail, North Cascades National Park. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60516.html Autumn foliage along Agnes Gorge trail, North Cascades National Park. Washington, USA. http://www.terragalleria.com/parks/np-image.noca60515.html Trail to Valley of Ten Thousand Smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63775.html Trail, Bay Canh Island, Con Dao National Park. Con Dao Islands, Vietnam http://www.terragalleria.com/vietnam/picture.viet62152.html Wildflowers and valley and sunrise, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64543.html Mountaineers hiking down rocky trail, Garnet Canyon. Grand Teton National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.grte64436.html Cliffs dwellings and trail, Walnut Canyon National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz68054.html Along Sandal Trail. Navajo National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/navajo-national-monument/picture.usaz68063.html Trail, Sangre de Cristo Wilderness. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa62668.html Trail and Sangre de Cristo Wilderness sign. Great Sand Dunes National Park and Preserve, Colorado, USA. http://www.terragalleria.com/parks/np-image.grsa62351.html Boardwalk bridge, Canyon Overlook Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63131.html White Spruce forest, Skookum Volcano Trail. Wrangell-St Elias National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.wrst63446.html Cow parsnip and mountains, Face Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64522.html Trail in forest. Voyageurs National Park, Minnesota, USA. http://www.terragalleria.com/parks/np-image.voya64094.html Hiker and trail on Mount Baldy. San Gabriel Mountains National Monument, California, USA http://www.terragalleria.com/california/picture.usca67964.html Switchbacks of Big Arsenic Trail. Rio Grande Del Norte National Monument, New Mexico, USA http://www.terragalleria.com/america/new-mexico/rio-grande-del-norte-national-monument/picture.usnm68677.html High Sierra View from Mt Whitney Trail Crest. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69346.html Lower Falls of the Yellowstone River from Uncle Tom Trail. Yellowstone National Park, Wyoming, USA. http://www.terragalleria.com/parks/np-image.yell63291.html Dunes and Lake Michigan, Dune Succession Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu21330.html Hikers on Huckleberry Trail. Jedediah Smith Wilderness, Caribou-Targhee National Forest, Idaho, USA http://www.terragalleria.com/america/idaho/teton-range/picture.usid64534.html Ute Trail crossing alpine tundra. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo62534.html Ute Trail. Rocky Mountain National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.romo62535.html Going-to-the-Sun road at dusk with car light trail. Glacier National Park, Montana, USA. http://www.terragalleria.com/parks/np-image.glac62562.html Dumpling Mountain Trail. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm63724.html View from West Rim Trail. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion63898.html View from northern Rim Trail, late afternoon. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca64381.html Hike the Hoodoos Rim Trail interpretive sign. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca64380.html Willows along Mojave River, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64902.html Aerial view of Cadiz dunes and mountain at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64916.html Animals tracks on golden dunes, Cadiz Dunes Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64888.html Cadiz Wilderness Sand Dunes and Shiphole Mountains at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64897.html Ripples on dunes, Cadiz Sand Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64891.html Grasses and Granite Mountains near Amboy. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64853.html Aerial view of road and railroad tracks, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64923.html Bush and ridges, Cadiz Sand Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64889.html Aerial view of pristine Cadiz dunes at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64920.html Backlit ridges, Cadiz Dunes Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64890.html Aerial view of Amboy Crater cinder cone. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64908.html Lava field and Amboy Crater cinder cone. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64867.html Aerial view of Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64930.html National Trails Highway route 66 marker. California, USA http://www.terragalleria.com/california/picture.usca64882.html Aerial view of Amboy Crater and Bullion Mountains at dawn. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64904.html Aerial view of Mojave River looking down, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64926.html Aerial view of riparian vegetation and eroded hills, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64924.html Abandonned building with graffiti along route 66. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64885.html Grasses and volcanic rocks. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64854.html Bushes on Amboy Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64855.html Inside Amboy Crater at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64856.html Rim of Amboy Crater and mountains at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64862.html Puddle and cracked mud in Amboy Crater at night. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64865.html Historic Route 66 marker at night. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64899.html Aerial view of car shining headlights on highway 66 maker at night. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64922.html Aerial view of lava field near Amboy Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64910.html Amboy Crater at dawn. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64866.html Aerial view of Amboy Crater looking down. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64905.html Aerial view of Amboy Crater and lava field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64906.html Aerial panoramic view of Amboy Crater and Bullion Mountains at sunrise. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64907.html Volcanic rocks, grasses, and Amboy Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64872.html Amboy Crater slope and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64870.html Hikers on Western Cone Trail, Amboy Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64869.html Lava field, Amboy Crater slope and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64871.html Volcanic terrain with Amboy Crater extinct cinder cone volcano. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64873.html Lava field and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64868.html Aerial view of Amboy Crater and Bullion Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64909.html Rim of Amboy Crater at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64857.html Amboy Crater rim and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64858.html Interior slopes of Amboy Crater and mountains at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64863.html Lava field and mountains from Amboy Crater at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64861.html Interior of Amboy Crater with breach in the cinder cone rim at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64860.html Moon shining inside Amboy Crater at night. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64864.html Aerial view of Cadiz dunes and valley. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64914.html Aerial view of ridges and shadows, Cadiz Sand Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64913.html North Cadiz Dunes, afternoon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64887.html Aerial view of Cadiz dunes and mountains at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64915.html Dunes and mountains at sunset, Cadiz Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64892.html Sun setting over Cadiz Sand Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64893.html Dusk, Cadiz Dunes Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64894.html Aerial view of Cadiz Dunes Wilderness at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64917.html Aerial view of sand dunes and mountains at dusk, Cadiz Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64919.html Aerial view of dune close-up, Cadiz Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64933.html Aerial view of Cadiz Sand Dunes at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64921.html Dune ridges and Shiphole Mountains at dusk, Cadiz Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64895.html Cadiz Dunes at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64898.html Rippled sand and ridges at dusk, Cadiz Dunes. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64896.html Route 66 marking and moon at night. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64900.html Road and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64881.html Aerial view of Route 66 with marker. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64911.html National Trails Highway (Route 66) marker and mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64886.html Aerial view of abandonned structure with graffiti and route 66 marker. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64912.html Abandonned building. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64883.html Old billboard and abandonned gas station. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64884.html Freigh train and desert mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64859.html Aerial view of train looking down. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64929.html Aerial view of train in Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64928.html Aerial view of After Canyon with road and railroad. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64927.html Aerial view of riparian area and hills, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64925.html Aerial view of dry wash, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64931.html Aerial view of river wash, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64932.html Backlit river vegetation, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64901.html Willows in winter, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca64903.html Art Deco hotels colorfully illuminated and traffic light trails, South Beach, Miami Beach. Florida, USA http://www.terragalleria.com/america/florida/miami/picture.usfl65220.html Red Bud Trail curve, Cache Creek Wilderness. Berryessa Snow Mountain National Monument, California, USA http://www.terragalleria.com/california/picture.usca65313.html Light trails of Synchronous and Blue Ghost fireflies, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65414.html Light trails of Synchronous fireflies, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65415.html Fireflies light trails over steep hill, Elkmont, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65397.html Jakes Creek Trail, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65413.html Light trail of a single firefly. Congaree National Park, South Carolina, USA. http://www.terragalleria.com/parks/np-image.cosw65435.html River Styx Trail in summer. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca65543.html Lush vegetation along Bates Ferry Trail. Congaree National Park, South Carolina, USA. http://www.terragalleria.com/parks/np-image.cosw65451.html Bates Ferry Trail. Congaree National Park, South Carolina, USA. http://www.terragalleria.com/parks/np-image.cosw65450.html Whiteoak Canyon Trail. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen65607.html Appalachian Trail in foggy forest at springtime. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen65570.html Appalachian Trail in lush forest with fog. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen65571.html Appalachian Trail backpackers in foggy forest. Shenandoah National Park, Virginia, USA. http://www.terragalleria.com/parks/np-image.shen65569.html Aerial view of Scenic Railroad along Cuyahoga River and Towpath Trail along Ohio Erie Canal. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65696.html Aerial view of Ohio Erie Canal, Towpath Trail, Cuyahoga River, Scenic Railroad. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65694.html Aerial view of Ohio Erie Canal, Towpath Trail and Cuyahoga River. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65695.html Trail. Cuyahoga Valley National Park, Ohio, USA. http://www.terragalleria.com/parks/np-image.cuva65691.html Fall foliage along Oak Flat Trail. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca65766.html Oak Flat Trail. Black Canyon of the Gunnison National Park, Colorado, USA. http://www.terragalleria.com/parks/np-image.blca65767.html Dune grass, snow, and Frozen Lake Michigan, Mount Baldy Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65968.html Trail, Longs Logs. Petrified Forest National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.pefo65953.html Oaks and now-covered wetlands, Little Calumet River Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65977.html Tree and star trails, Cataloochee Overlook, Tennessee. Great Smoky Mountains National Park, USA. http://www.terragalleria.com/parks/np-image.grsm65937.html Bare aak trees and sun, Paul Douglas Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65992.html Snow-covered boardwalk, Little Calumet River Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65981.html Prairie grasses and trees with fresh snow, Little Calumet River Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65978.html Dune, Marram Grass, and beach with shelf ice, Paul Douglas Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65994.html Oaks and wetland in winter, Cowles Bog Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65983.html Birch trees and frozen pond, Cowles Bog Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65984.html Great Marsh from Dune Ridge Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65974.html Reeds and oak savanna, Paul Douglas Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65993.html Frozen pond and oak savanna, Paul Douglas Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65990.html Little Calumet River with fresh snow, Heron Rookery Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65976.html Reeds in frozen pond, Paul Douglas Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu65991.html Dune Succession Trail stairs. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu66035.html Boardwalk, Cowles Bog Trail. Indiana Dunes National Park, Indiana, USA. http://www.terragalleria.com/parks/np-image.indu66048.html Narrow side canyon, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66403.html Desert wildflowers on Afton Canyon floor. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66414.html Conglomerate rock canyon and cliffs, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66401.html Track flooded by Mojave River, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66392.html Aerial view of cliffs and Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66417.html Mojave River and Afton Canyon palissades. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66399.html Aerial view of Afton Canyon walls. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66418.html Aerial view of Afton Canyon, rail tracks and roads. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66420.html Afton Canyon cliffs reflected in shallow Mojave River. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66396.html Aerial view of Afton Canyon, railroad, and Mojave River. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66419.html Conglomerate rock slot canyon, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66405.html Annual desert wildflowers at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66389.html Aerial view of Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66416.html Spring wildflowers and mountains at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66388.html Mojave River crossing at sunrise. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66390.html Aerial view of Afton Canyon badlands at sunrise. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66415.html Cottonwood trees reflected in Mojave River. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66393.html Flutted canyon walls, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66394.html Afton Canyon of the Mojave River. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66395.html Colorful cliffs rise above the Mojave River in Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66397.html Ankle deep Mojave River runs above the surface in Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66398.html Brittlebush on Afton Canyon floor. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66413.html Desert wash and eroded badlands, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66400.html Eroded side canyon, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66402.html Desert wash in badlands, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66409.html Wash in narrow side canyon, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66411.html Steep eroded canyon in badlands, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66410.html Slot canyon in conglomerate rock, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66404.html Slot canyon walls in sedimentary rocks. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66408.html Slot canyon with knobby rocks, Afton Canyon. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca66407.html Trail. Huangshan Mountain, China http://www.terragalleria.com/asia/china/huangshan/picture.chin66503.html Pacific Crest Trail. Cascade Siskiyou National Monument, Oregon, USA http://www.terragalleria.com/america/oregon/cascade-siskiyou/picture.usor66754.html International Appalachian Trail following old logging road. Katahdin Woods and Waters National Monument, Maine, USA http://www.terragalleria.com/america/maine/katahdin-woods-and-waters/picture.usme66945.html International Appalachian Trail sign. Katahdin Woods and Waters National Monument, Maine, USA http://www.terragalleria.com/america/maine/katahdin-woods-and-waters/picture.usme66954.html Ferns in autumn, Esker Trail. Katahdin Woods and Waters National Monument, Maine, USA http://www.terragalleria.com/america/maine/katahdin-woods-and-waters/picture.usme66877.html Hikers on ledge with handrails, Precipice Trail. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad66994.html Hikers on Precipice Trail. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad66992.html Hikers on vertical section of Precipice Trail. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad66990.html Iron rungs, Precipice Trail. Acadia National Park, Maine, USA. http://www.terragalleria.com/parks/np-image.acad66989.html Close-up of grasses on dunes with trails. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67310.html Backpackers hiking on Backcountry Trail in late afternoon. White Sands National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.whsa67317.html Road with light trails and Organ Mountains at dusk. Organ Mountains Desert Peaks National Monument, New Mexico, USA http://www.terragalleria.com/america/new-mexico/organ-mountains-desert-peaks-national-monument/picture.usnm67393.html Hikers descending towards Trail Camp, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69384.html Women hikers descend trail from Kearsarge Pass. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica69365.html Switchbacks above Trail Camp, Inyo National Forest. California, USA http://www.terragalleria.com/california/picture.usca69385.html Hikers on the switchbacks between Trail Camp and Trail Crest, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69386.html Keeler Needles from Trail Crest. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69347.html Nunamiut family on Argo following ATV trail. Gates of the Arctic National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.gaar70053.html Trail Camp Pond and Keeler Needles, dawn. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69350.html Keeler Needles and Mt Whitney from Trail Camp, sunrise. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69351.html Walls and wwitchbacks, Big Arsenic Trail. Rio Grande Del Norte National Monument, New Mexico, USA http://www.terragalleria.com/america/new-mexico/rio-grande-del-norte-national-monument/picture.usnm68678.html Representatives from Santa Cruz Mountain Trails Association and the Amah Mutsun Land Trust speak about their work. Cotoni-Coast Dairies Unit, California Coastal National Monument, California, USA http://www.terragalleria.com/california/picture.usca69402.html Trail, pasture with cows, Silicon Valley, Mission Peak Regional Preserve. California, USA http://www.terragalleria.com/california/picture.usca70257.html Inside lava tube cave entrance, Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67689.html Aerial view of Lavic Lake volcanic field with distant Pisgah Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67695.html Wildflowers and Cholla cactus in Ward Valley at dawn. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67678.html Backlit Cholla cactus at sunrise. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67679.html Hardened lava flow and Pisgah Crater. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67685.html Lava tube cave, Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67700.html Aerial view of Pisgah Crater and lava flow. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67696.html Aerial view of Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67698.html Aerial view of Pisgah cinder cone and Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67697.html Pisgah Crater cinder cone. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67694.html Lava field and Pisgah cinder cone. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67688.html Pishgah cinders and lava flow. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67684.html Basaltic pahoehoe lava plain. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67686.html Lavic Lake volcanic field and Cady Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67691.html Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67687.html Pisgah Cinder cone and entrance to lava tube cave. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67692.html Depression and entrance to lava tube cave. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67693.html Sky from opening of lava tube cave, Pisgah lava field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67690.html Inside lava tube, Lavic Lake volcanic field. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67699.html Wildflowers, Cholla cactus, Piute Mountains at dawn. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67677.html Yucca and Sacramento Mountains, Bigelow Cholla Garden Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67680.html Brittlebush and Sacramento Mountains, Bigelow Cholla Garden Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67681.html Pavement detail, route 66. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67682.html Asphalt marks, route 66. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca67683.html Trail and spatter cones. Craters of the Moon National Monument and Preserve, Idaho, USA http://www.terragalleria.com/america/idaho/craters-of-the-moon/picture.usid68357.html Wingate Sandstone cliffs, Burr Trail. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68572.html Bentonitic mudstone and sandstone cliffs, Burr Trail. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68573.html Bentonitic badlands and cliffs, Burr Trail. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68574.html Crossbedded Navajo Sandstone, Burr Trail. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68579.html Crossbedded Petrified Dunes, Burr Trail. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68580.html Burr Trail winding into Long Canyon. Grand Staircase Escalante National Monument, Utah, USA http://www.terragalleria.com/america/utah/grand-staircase/picture.usut68551.html Bigelow Cholla cacti and Sacramento Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68705.html Sun setting over Bigelow Cholla Garden Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68710.html Bigelow Cholla cactus (Opuntia bigelovii) at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68713.html Desert riparian environment in Bonanza Springs. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68700.html Bigelow Cholla cactus on ridge. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68702.html Willows and cottonwoods in Bonanza Springs. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68697.html Bigelow Cholla cactus on distant slope. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68703.html Bigelow Cholla Garden Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68704.html Densest California population of Bigelow Cholla cactus. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68706.html Teddy-Bear Cholla cactus above valley. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68707.html Bigelow Cholla Garden Wilderness at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68708.html Sunset over dense stands of Bigelow Cholla cactus (Opuntia bigelovii). Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68709.html Sun setting over Bigelow Cholla cacti, Bigelow Cholla Garden Wilderness. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68711.html Dense stands of Teddy-Bear Cholla cactus (Opuntia bigelovii) at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68712.html Jumping Cholla cactus (Opuntia bigelovii) and Sacramento Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68714.html Slopes with Jumping Cholla cactus at twilight. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68715.html Bigelow Cholla cactus and Sacramento Mountains at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68716.html Fenner Valley at sunset. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68694.html Bonanza Springs and Clipper Mountains. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68693.html Mojave Desert hills and mountains with Bonanza Springs. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68695.html Limestone canyon with Bonanza Springs Oasis. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68696.html Vegetation following water in Bonanza Springs. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68698.html Plants and trees in Bonanza Springs at dusk. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68701.html Bonanza Springs. Mojave Trails National Monument, California, USA http://www.terragalleria.com/california/picture.usca68699.html Keeler Needles reflected in Trail Camp Pond. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ69349.html Glade Creek Trail. New River Gorge National Park and Preserve, West Virginia, USA. http://www.terragalleria.com/parks/np-image.neri69223.html Rhododendrons and Long Point Trail. New River Gorge National Park and Preserve, West Virginia, USA. http://www.terragalleria.com/parks/np-image.neri69248.html Backpackers walking on trail in meadow towards mountains. Kings Canyon National Park, California, USA. http://www.terragalleria.com/parks/np-image.kica69367.html Hiking the John Muir Trail towards Mt Stanford, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica69372.html Group hiking Pacific Crest Trail below Forester Pass, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica69377.html John Muir Trail below Forester Pass, sunrise, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica69378.html Precipitous section of the John Muir Trail, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica69381.html Backpacker on the John Muir Trail below Forester Pass, Kings Canyon National Park. California http://www.terragalleria.com/mountain/mountain-image.kica69382.html Hiker walking Forester Pass, highest point of John Muir Trail, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69353.html Below Forester Pass, highest point of Pacific Crest Trail in the spring, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69354.html Backpacker crossing snowy section of the John Muir Trail below Forester Pass, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69355.html Hiker on Pacific Crest Trail above treeline, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69356.html Backpackers on rocky section of the Pacific Crest Trail, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69358.html John Muir Trail on the Bighorn Plateau, Sequoia National Park. California http://www.terragalleria.com/mountain/mountain-image.sequ69363.html Hikers descending switchbacks to Trail Camp, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69387.html Cables section of Mt Whitney trail above Trail Camp, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69388.html Trail Camp, afternoon, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69389.html Trail Camp, evening, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69390.html Trail Camp and Trail Camp Pond, evening, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69391.html Campers at Trail Camp, sunrise, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69393.html Tents and campers at Trail Camp, sunrise, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69394.html Trail Camp and Mt Whitney, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69395.html Backpacker on trail to Mt Whitney, Inyo National Forest. California http://www.terragalleria.com/mountain/mountain-image.usca69396.html View from Savage Alpine Trail in autumn. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena69957.html Savage Alpine Trail. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena69972.html Visitor looking, from Savage Alpine Trail. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena69960.html Hikers on Savage Alpine Trail. Denali National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.dena69959.html Erie Mine Trail in autumn. Wrangell-St Elias National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.wrst70116.html