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 Grasses and dark cinder. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44937.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 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 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 Cinder and forest. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44932.html Sagebrush and pumice. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44935.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 Kana-a lava flow, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44953.html Cinder and Sunset Crater at sunrise. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44931.html Grasses and black cinder. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44936.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 Lava fields and snow-capped San Francisco Peaks. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44938.html Hardened lava and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44952.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 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 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 Volcanic hillside. Wupatki National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/wupatki-national-monument/picture.usaz44950.html Sparse vegetation on cinder slope. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44934.html Cinder and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44954.html