Cinder and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44954.html Bare aspen trees on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5514.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 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 Hardened lava and pine trees, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44952.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 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 Bare aspen forest on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5515.html Kana-a lava flow, Coconino National Forest. Arizona, USA http://www.terragalleria.com/america/arizona/around-flagstaff/picture.usaz44953.html Bare aspen trees mixed with conifers on hillside. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca5516.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 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 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 Cinder and forest. Sunset Crater Volcano National Monument, Arizona, USA http://www.terragalleria.com/america/arizona/sunset-crater-volcano-national-monument/picture.usaz44932.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