crla44978 Pumice plain. Crater Lake National Park, Oregon, USA. http://www.terragalleria.com/parks/np-image.crla44978.html katm0104 Pumice and Novarupta (the center of the 1912 eruption), Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0104.html katm0132 Pumice and wildflowers, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm0132.html katm21132 Wildflowers, pumice, and distant peaks in storm, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm21132.html katm21133 Pumice below Novarupta volcano, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm21133.html katm21136 Detail of pumice, Valley of Ten Thousand smokes. Katmai National Park, Alaska, USA. http://www.terragalleria.com/parks/np-image.katm21136.html usaz44929 Pines on cinder slopes of crater at sunrise, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44929.html usaz44930 Pines trees and shrubs on cinder slope at sunrise, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44930.html usaz44931 Cinder and Sunset Crater at sunrise, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44931.html usaz44932 Cinder and forest, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44932.html usaz44935 Sagebrush and pumice, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44935.html usaz44936 Grasses and black cinder, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44936.html usaz44937 Grasses and dark cinder, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44937.html usaz44942 Steam rising from cinder landscape, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44942.html usaz44943 Pine trees, hardened lava, and red cinder, Sunset Crater Volcano National Monument. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44943.html usid8403 Dark pumice, Craters of the Moon National Monument. Idaho, USA http://www.terragalleria.com/america/idaho/craters-of-the-moon/picture.usid8403.html usid8406 Shrubs growing in cinder, Craters of the Moon National Monument. Idaho, USA http://www.terragalleria.com/america/idaho/craters-of-the-moon/picture.usid8406.html