1116-51023 - Petroglyphs on volcanic rock in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51029 - Petroglyphs on volcanic rock with sagebrush in the background, Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51028 - Petroglyphs on volcanic rock with sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51021 - Petroglyphs on volcanic rock surrounded by sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51025 - Petroglyphs on volcanic rock with sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51026 - Petroglyphs on volcanic rock with sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51024 - Petroglyphs on volcanic rock with sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51027 - Petroglyphs on volcanic rock with sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51030 - Petroglyphs on volcanic rock in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1116-51022 - Petroglyphs on volcanic rock surrounded by sagebrush in Piedras Marcadas Canyon, Petroglyph National Monument on a sunny, spring afternoon; Albuquerque, New Mexico, United States of America

1350-3340 - Mount Saint Helens at sunrise from Smith Creek Viewpoint; Mount St. Helens National Volcanic Monument, Washington..

1112-5053 - Waterfall in Lava Canyon, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America

1112-5051 - Waterfall in Lava Canyon, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America

857-95210 - Mother and daughter resting and eating while hiking in Heart of Rocks, Chiricahua National Monument, Willcox, Arizona, USA

801-2172 - Mount St. Helens with wild flowers, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America

801-2171 - Mount St. Helens with wild flowers, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America

801-2173 - Mount St. Helens with wild flowers, Mount St. Helens National Volcanic Monument, Washington State, United States of America, North America

801-906 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

832-364113 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364104 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364112 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364103 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364102 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364109 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364114 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-364108 - Tuff rock from Uchisar, near by Goereme, Cappadocia, turkey

832-249002 - Moraine lake on the Obsidian Flow lava stream, Newberry National Volcanic Monument, Oregon, USA

832-219368 - Paulina Falls, Newberry National Volcanic Monument, Oregon, USA

764-3892 - Volcanic boulders on Navajo sandstone, Grand Staircase-Escalante National Monument, Utah, United States of America, North America

801-983 - Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America

801-984 - Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America

801-985 - Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America

801-986 - Kasha-Katuwe Tent Rock National Monument, tent like rock formations, from volcanic eruptions 6 to 7 million years ago, New Mexico, United States of America, North America

801-908 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-902 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-904 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-905 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-909 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-907 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-903 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-900 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-898 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-896 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-899 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-897 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

801-901 - Petroglyph National Monument, petroglyphs carved into volcanic rock by American Indians 400 to 700 years ago, New Mexico, United States of America, North America

764-3854 - Volcanic boulders on Navajo sandstone, Grand Staircase-Escalante National Monument, Utah, United States of America, North America

1116-30178 - Hawaii, Maui, Haleakala National Park, Haleakala Crater.

1116-30170 - Hawaii, Maui, Haleakala National Park, Haleakala Crater.

797-330 - USA Washington Skamania Mount St Helens National Volcanic Monument. Crushed car and flattened bare trees in the aftermath of the 1980 eruption

757-108 - Mount St. Helens, Mount St. Helens National Volcanic Monument, Washington state, United States of America, North America

757-107 - Penstemon flowers, Mount St. Helens, Mount St. Helens National Volcanic Monument, Washington state, United States of America, North America

757-106 - Penstemon flowers, Mount St. Helens, Mount St. Helens National Volcanic Monument, Washington state, United States of America, North America

197-1687 - Devil's Tower National Monument, Wyoming, USA

83-4538 - Thousands of trees blown down by the 1980 eruption still floating on Spirit Lake north of the mountain, Mount St. Helens National Volcanic Monument, Washington State, United States of America (U.S.A.), North America

83-4536 - Spirit Lake in the landscape north of Mount St. Helens devastated by the 1980 eruption, Mount St. Helens National Volcanic Monument, Washington State, United States of America (U.S.A.), North America

29-3598 - Lava dome in crater seen from rim, Mount St. Helens after 1980 eruption, with Spirit Lake and Mount Rainier in the distance, Mount St. Helens National Volcanic Monument, Washington State, United States of America (U.S.A.), North America

83-4529 - Ryan Lake and some of the millions of trees north of Mount St. Helens flattened by the eruption of 1980, Mount St. Helens National Volcanic Monument, Washington State, United States of America (U.S.A.), North America

83-4528 - Dead trees in the Mount St. Helens National Volcanic Monument in Washington State, United States of America, North America

83-4531 - Part of the 150 square miles of forest north of Mount St. Helens flattended by the huge eruption of 1980, Mount St. Helens National Volcanic Monument, Washington State, United States of America (U.S.A.), North America