Aspens and evergeens on hillside, North Rim. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8506.html Flowers and wall in Surprise Valley near Tapeats Creek, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8468.html Thunder river lower waterfall, afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8479.html Autumn Colors in Havasu Canyon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca0712.html Creek in Havasu Canyon, late fall. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5863.html Tall aspens in autumn. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8503.html Aspens in autumn. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8504.html Aspens in fall. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8505.html Aspens and evergreens on hillside, North Rim. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8507.html Backlit Aspens with fall foliage on hillside, North Rim. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8508.html Backlit Aspen forest in autumn foliage on hillside, North Rim. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8509.html Bare aspen trees mixed with conifers on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5516.html Bare aspen trees on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5514.html Bare aspen forest on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5515.html Agave flower skeletons in Surprise Valley, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8463.html Cacti in Surprise Valley, late afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8464.html Sage flowers, wall, and cloud, Surprise Valley, sunset. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8467.html Flowers and mesas in Surprise Valley near Tapeats Creek, dusk. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8469.html Barrel cacti close-up. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8465.html Barrel cactus and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8472.html Trees and Thunder River lower waterfall. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8481.html Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1223.html Giant Saguaro cactus (scientific name: Carnegiea gigantea), mid-day. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1225.html Saguaro cacti forest on hillside, late afternoon, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu2193.html Moonrise behind saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1228.html Saguaro cactus and moon, dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1227.html Saguaro cactus and moon at dawn. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1233.html Saguaro cactus blooms. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1237.html Saguaro cactus blooming. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1239.html Arms of blooming Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1241.html Cactus detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1243.html Occatillo detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1245.html Saguaro cactus trunk detail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1249.html Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1244.html Sotol, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1250.html Backlit Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1222.html Cholla cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1226.html saguaro cacti forest on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1229.html Saguaro cacti forest and occatillo on hillside, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1230.html Palo verde and saguaro cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1231.html Saguaro cactus and Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1232.html Arms of Saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1234.html Saguaro cactus with blooms. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1235.html Saguaro flower on top of cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1236.html Saguaro cactus flowers and arm. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1238.html Saguaro cactus flowers against blue sky. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1240.html Saguaro cactus flower and bees. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1242.html Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1246.html Cactus detail, Arizona Sonora Desert Museum. Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.sagu1247.html Saguaro cactus trunk close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu1248.html Saguaro cactus in bloom. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu2192.html Cottonwoods in fall color and walls, White House Overlook. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8890.html Cotton wood tree and hut. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8901.html White House Ancestral Pueblan ruins with trees in fall colors. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8903.html White House Anasazi ruins and wall with desert varnish. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8908.html Cottonwoods in fall color and walls, White House Overlook. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8889.html Canyon de Chelly seen from Spider Rock Overlook. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8894.html Floor of canyon with cottonwoods in fall colors and White House ruins. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz8909.html Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8862.html Organ Pipe Cactus (Stenocereus thurberi) and Diablo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8863.html Saguaro Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8865.html Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8868.html Cactus and Sonoyta Valley, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8869.html Organ Pipe cactus silhouetted at sunset. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8870.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8872.html Backlit cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8873.html Detail of Organ Pipe Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8874.html Detail of Organ Pipe Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8875.html Paloverde and Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8876.html Saguaro cactus and moon. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8877.html Cacti, Diablo Mountains, dusk. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8878.html Cactus on hillside. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8879.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz8880.html Close up of rock and lichen. Vermilion Cliffs National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/vermilion-cliffs-national-monument/picture.usaz8965.html Carpet of Arizona Lupine, Desert Dandelion, and Brittlebush near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32773.html Arizona Lupine, Desert Dandelion, with Brittlebush and Cottonwood Mountains. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32771.html Carpet of Arizona Lupine, Desert Dandelion, and Brittlebush near the Southern Entrance. Joshua Tree National Park, California, USA. http://www.terragalleria.com/parks/np-image.jotr32774.html Barrel cactus, Ajo Mountains, and dark clouds. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33474.html Cactus, field of brittlebush in bloom, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33459.html Base of organ pipe cactus and yellow brittlebush flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33451.html Group of saguaro cactus in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33476.html Chain fruit cholla cactus and brittlebush in bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33448.html Multi-armed saguaro cactus in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33475.html Hillside with cactus and brittlebush in bloom, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33465.html Britlebush (Encelia farinosa) in bloom, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33456.html Close-up of Mexican Poppies (Eschscholzia californica subsp. mexicana) and Cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33469.html Saguaro cactus silhouetted at sunset. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33478.html Cactus and brittlebush in the spring under cloudy skies, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33446.html Verdant desert valley bottom with cactus, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33441.html Saguaro cacti and brittlebush in bloom, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33445.html Organ pipe cactus and brittlebush on hillside, North Puerto Blanco Drive. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33440.html Organ pipe cactus and brittlebush (Encelia farinosa) in bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33447.html Chain fruit cholla cactus and brittlebush in bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33442.html Close-up of Ocatillo bloom. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33439.html Chain fruit cholla cacti, organ pipe cacti, and brittlebush in bloom on hill. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33443.html Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33449.html Base of organ pipe cactus and yellow brittlebush flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33450.html Cactus and annual flowers. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33453.html Saguaro cacti. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33452.html Cactus, annual flowers, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33454.html Britlebush in bloom, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33455.html Desert in bloom with britlebush, saguaro cactus, and mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33457.html Group of Saguaro cactus amongst flowering brittlebush. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33458.html Cactus, field of brittlebush in bloom, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33462.html Brittlebush (Encelia farinosa) flowers and organ pipe cactus. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33477.html Slope with cactus and brittlebush, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33464.html Hillside wih cactus and brittlebush in spring, Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33470.html Organ pipe cacti on slope in spring. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33463.html Saguaro cactus, approaching storm. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33471.html Brittlebush, cactus, storm clouds, and Ajo Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz33472.html Arch and North Court, San Xavier del Bac Mission (the White Dove of the Desert). Tucson, Arizona, USA http://www.terragalleria.com/america/arizona/tucson/picture.usaz33495.html Saguaro cactus and Superstition Mountains silhoueted at sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33519.html Sun and Saguaro cactus, sunrise, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33520.html Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33521.html Cactus Wren nesting in a cavity of a saguaro cactus, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33522.html Old saguaro cacti, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33523.html Tall cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33509.html Cholla cacti and Superstition Mountains, Lost Dutchman State Park, afternoon. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33510.html Multi-armed saguaro cactus, sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33517.html Saguaro cactus silhoueted at sunset, Lost Dutchman State Park. Arizona, USA http://www.terragalleria.com/america/arizona/phoenix/picture.usaz33518.html Rocks, flowers and cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32864.html Prickly ball on saguaro cactus, precursor of a new arm. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32801.html Bark of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32823.html Teddy-bear cholla cactus close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32829.html Brittlebush and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32818.html Circular Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32804.html Mature Saguaro cactus (Carnegiea gigantea) on a hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32835.html Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32816.html Tall cactus on the slopes of Tucson Mountains, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32849.html Saguaro cactus silhouetted on hill at sunrise near Valley View overlook. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32820.html Circular Hohokam petroglyph. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32802.html Hohokam petroglyphs on Signal Hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32805.html Lupine, saguaro cactus, and occatillo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32810.html Sonoran desert in bloom, Tucson Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32811.html Saguaro cactus and desert in bloom near Valley View overlook. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32821.html Brittlebush, cactus, and hills, Valley View overlook, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32825.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 Slope with saguaro cactus forest, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32847.html Tall saguaro cactus on the slopes of Tucson Mountains, late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32850.html Hiker and saguaro cactus, Hugh Norris Trail. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32843.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 Saguaro cactus at night with stary sky, Tucson Mountains. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32853.html Twin cactus at dawn near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32855.html Brittlebush and cactus at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32856.html Brittlebush and backlit cactus at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32858.html Tall cactus and Tucson Mountains, early morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32860.html Brittlebush and cactus near Ez-Kim-In-Zin, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32861.html Brittlebush and Saguaro cactus near Ez-Kim-In-Zin, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32862.html Rocks, flowers and cactus with Panther Peak and Safford Peak in the background. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32863.html Rocks, flowers and cactus, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32865.html Multi-armed sagurao cactus near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32836.html Cactus lupine, and mexican poppies with Panther Peak in the background, afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32837.html Lush desert with Cactus, mexican poppies, and palo verde near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32838.html Cactus, mexican poppies, and palo verde near Ez-Kim-In-Zin, afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32839.html Dense saguaro cactus forest at sunrise near Ez-Kim-In-Zin. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32854.html Wildflowers and cactus, Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32813.html Grassy area near Mica View, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32814.html Cactus and carpet of yellow wildflowers, Rincon Mountain District. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32815.html Arm of a saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32834.html Skin of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32830.html Bark of old saguaro cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32824.html Teddy-bear Cholla cactus and phacelia. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32827.html Cholla cactus, phacelia, and brittlebush. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32826.html Cholla cactus close-up. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32828.html Brittlebush and ocotilo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32831.html Pencil cholla cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32833.html Brittlebush and ocotilo. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32832.html Phacelia and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32800.html Royal lupine and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32799.html Pink wildflowers and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32817.html Brittlebush and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32819.html Apricot mellow and prickly pear cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32812.html Brittlebush and cactus. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu32822.html Agave flower skeletons and mesas in Surprise Valley. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20085.html Barrel cacti and Thunder Spring, early morning. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20086.html Thunder river lower waterfall, afternoon. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20088.html Barrel cactus and Redwall from below. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20091.html Saguaro cacti (scientific name: Carnegiea gigantea), late afternoon. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21014.html Saguaro cactus forest on hillside, morning, West Unit. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21015.html Cactus forest on hillside, Gates pass, morning. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21013.html Ocatillo and Saguaro cactus on hillside. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21011.html Ocatillo and saguaro cactus in valley. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21016.html Saguaro cactus (Cereus giganteus), backlit with a rim of light. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21017.html Saguaro cactus silhouettes at sunset. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21018.html Palo Verde and saguaro cactus on hill. Saguaro National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.sagu21012.html Dunes and bushes. Canyon de Chelly National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/canyon-chelly/picture.usaz20192.html Cactus and Puerto Blanco Mountains. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20165.html Organ Pipe Cactus and Saguaro. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20168.html Organ Pipe cactus and Ajo Range, late afternoon. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20167.html Ocotillo and cactus on a slope. Organ Pipe Cactus National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/organ-pipe-cactus/picture.usaz20166.html Pine trees growing on lava fields. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44945.html Steam rising from cinder landscape. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44942.html Cinder cone detail. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44940.html Volcanic landscape with cinder domes. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44941.html Cloud and ridge with saguaro cactus, Maricopa Mountains. Sonoran Desert National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sonoran-desert-national-monument/picture.usaz44867.html Pine trees on slopes of crater. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44933.html Kana-a lava flow, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44953.html Aspens and conifers, Apache National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/arizona-misc/picture.usaz44918.html Pines on cinder slopes of crater at sunrise. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44929.html Pines trees and shrubs on cinder slope at sunrise. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44930.html Cinder-covered slopes. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44939.html Volcanic hills covered with black lava and cinder. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44944.html Cinder and forest. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44932.html Mixed woodland with aspens and evergreens, Apache National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/arizona-misc/picture.usaz44919.html Hardened lava and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44952.html Cinder and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44954.html Pine trees, hardened lava. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44943.html Pine trees, Apache National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/arizona-misc/picture.usaz44917.html Saguaro cactus, hill, and clouds, Maricopa Mountains. Sonoran Desert National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sonoran-desert-national-monument/picture.usaz44868.html Desert landscape, Maricopa Mountains. Sonoran Desert National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sonoran-desert-national-monument/picture.usaz44869.html Sandy flat and clouds, South Maricopa Mountains. Sonoran Desert National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sonoran-desert-national-monument/picture.usaz44871.html Sandy plain and clouds, South Maricopa Mountains. Sonoran Desert National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sonoran-desert-national-monument/picture.usaz44870.html Pinnacles and fog. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44881.html Rock pillars and fog. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44891.html Stone columns. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44884.html Massai Point view. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44879.html Organ pipe volcanic rock formations. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44883.html Cliff eroded into stone pillars. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44882.html Rhyolite spires. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44874.html Landscape of spires from Massai Point. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44876.html Rhyolite columns. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44875.html Rhyolite pinnacles. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44877.html Spires at dusk from from Massai Point. Chiricahua National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/chiricahua/picture.usaz44878.html