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January 27, 2011 - Dallol geothermal area, terraces, potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia.
January 27, 2011 - Dallol geothermal area, terraces of potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia.
January 27, 2011 - Dallol geothermal area, potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia.
January 27, 2011 - Dallol geothermal area, potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia.
Quilotoa Lake, Cotopaxi Province, Ecuador
Nubian ibex standing on a mountain in the Ramon crater with a beautiful mountain israeli landscape with blue sky on the background. Negev desert, Israel.
Panoramic view the Ramon Crater in Negev desert in Israel
O'Leary Peak, Coconino National Forest, Arizona, USA
Volcanic cinder hills in Coconino National Forest, Arizona, USA
Volcanic cinder hills in Coconino National Forest, Arizona, USA
Volcanic cinder hills in Coconino National Forest, Arizona, USA
Rice paddy fields, with heavy monsoon clouds gathering over volcanic crater hills across Lake Toba from Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia
Rice paddy fields, with heavy monsoon clouds gathering over volcanic crater hills across Lake Toba from Samosir Island, Sumatra, Indonesia, Southeast Asia, Asia
Spotted hyena (spotted hyaena) (Crocuta crocuta), Ngorongoro Crater, Tanzania, East Africa, Africa
Thomson's gazelle (Gazella thomsonii) female giving birth, Ngorongoro Crater, Tanzania, East Africa, Africa
The fire watchtower on the summit of O'Leary Peak in the Coconino National Forest of Arizona. Adjacent to the Sunset Crater National Monument.
Forest Service Road that leads to the O'Leary Peak Watchtower and Overlook. Adjacent to Sunset Crater National Monument Arizona in the Coconino National Forest.
A snow squall storm building up over Humphrey's Peak. Viewed from O'Leary Peak in the Coconino National Forest of Arizona. Adjacent to Sunset Crater National Monument.
End of the Forest Service Road that leads to the O'Leary Peak Watchtower and Overlook. The metal grating is to add traction for vehicles. Adjacent to Sunset Crater National Monument Arizona in the Coconino National Forest.
A snow squall storm building up over Humphrey's Peak. Viewed from O'Leary Peak in the Coconino National Forest of Arizona. Adjacent to Sunset Crater National Monument.
Dead trees from a past forest fire on the slope of O'Leary Peak in northern Arizona. Sunset Crater Volcano is in the background.
The eastern summit of O'Leary Peak in the Coconino National Forest of Arizona. Adjacent to the Sunset Crater National Monument.
Sunset Crater Volcano viewed from the forested slope of O'Leary Peak in northern Arizona.
African bush elephant (Loxodonta africana), feeding inside Ngorongoro Crater, Tanzania, East Africa, Africa
Adult African crowned crane (Balearica regulorum), Ngorongoro Crater, Tanzania, East Africa, Africa
Looking down into Ubehebe crater, a Maar volcano, caused by groundwater contacting hot magma or lava, Death Valley National Park, California, United States of America, North America
Poas volcano, Poas National Park, Costa Rica, Central America
Poas volcano, Poas National Park, Costa Rica, Central America
Llyn y Fan Fach, Brecon Beacons, Wales, United Kingdom, Europe
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Aerial of the Trou du Natron volcanic crater and its natron lakes, Tibesti Mountains, Chad
Smoke over the two craters of Erta Ale volcano summit caldera, Danakil Depression, Afar Region, Ethiopia, Africa
Panoramic aerial view of sunset over the active Erta Ale volcano crater, Danakil Depression, Afar Region, Ethiopia, Africa
Irazu volcano, Irazu Volcano National Park, Cartago Province, Costa Rica
Irazu volcano, Irazu Volcano National Park, Cartago Province, Costa Rica
A view of the boiling mud at Namafjall, Iceland
View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, Europe
View from Calderon Honda crater of lava rock ruins and volcanic cones of the north, Lajares, Fuerteventura, Canary Islands, Spain, Europe
Late afternoon light on the Crater Lake of the Crater Lake National Park, Oregon, United States of America, North America
Volcanic landscape of the Masaya caldera, Nicaragua's first national park, with craters and a'a blocky lava, Masaya, Nicaragua, Central America
Crater of the Poas volcano, San Jose, Costa Rica, Central America
Mother and newborn calf blue wildebeest (brindled gnu) (Connochaetes taurinus), Ngorongoro Crater, Tanzania, East Africa, Africa
Adult male Grant's gazelles (Nanger granti) sparring inside Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Green-backed heron (striated heron) (Butorides striatus), immature, Ngorongoro Crater, Tanzania, East Africa, Africa
Two black rhinoceros (hook-lipped rhinoceros) (Diceros bicornis), Ngorongoro Crater, Tanzania, East Africa, Africa
Thomson's gazelle (Gazella thomsonii) buck with reflection, Ngorongoro Crater, Tanzania, East Africa, Africa
Thomson's gazelle (Gazella thomsonii) buck drinking with reflection, Ngorongoro Crater, Tanzania, East Africa, Africa
Black rhinoceros (hook-lipped rhinoceros) (Diceros bicornis) pair, Ngorongoro Crater, Tanzania, East Africa, Africa
Serengeti jackal (golden jackal) (Canis aureus bea) pup, Ngorongoro Crater, Tanzania, East Africa, Africa
Lesser masked weaver (Ploceus intermedius), Ngorongoro Crater, Tanzania, East Africa, Africa
Grey crowned crane (Southern crowned crane) (Balearica regulorum), Ngorongoro Crater, Tanzania, East Africa, Africa
Serengeti jackal (golden jackal) (Canis aureus bea) pups, Ngorongoro Crater, Tanzania, East Africa, Africa
Abdim's stork (Ciconia abdimii), Ngorongoro Crater, Tanzania, East Africa, Africa
Lion (Panthera Leo) female and cub, Ngorongoro Crater, Tanzania, East Africa, Africa
Ruppells griffon vultures (Gyps rueppellii), Ngorongoro Crater, Tanzania, East Africa, Africa
Gran Cratere and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
People looking at view of Stromboli island from Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Sulphur and fumaroles smoke on volcano Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Geologists taking minerals samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
People walking through fumaroles on Volcano Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Gran Cratere (The Great Crater) and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Hverfell Crater rising out of the Dimmuborgir Lava Field, Myvatn Region, Iceland, Polar Regions
Aerial view of wine growing district of La Geria, Timanfaya National Park, Lanzarote, Las Palmas, Canary Islands, Spain, Atlantic, Europe
Wizard Island and the still waters of Crater Lake, the deepest lake in the U.S.A., part of the Cascade Range, Oregon, United States of America, North America
Lava lake in the caldera of the Ambrym volcano, Vanuatu, Pacific
Smoking Ambrym volcano, Vanuatu, Pacific
Smoking Ambrym volcano, Vanuatu, Pacific
Smoking Ambrym volcano, Vanuatu, Pacific
Crater of Rano Kau Volcano at sunset, Easter Island, Chile, South America
Crater of Rano Kau Volcano at sunset, Easter Island, Chile, South America
Khorgo volcano crater and White Lake in the background, Tariat district, North Hangay province, Mongolia, Central Asia, Asia
A grey crowned crane (Balearica regulorum) in the Ngorongoro Crater, Tanzania, East Africa, Africa
Flat top acacia trees (Vachellia abyssinica) along a road leading to the Ngorongoro Crater, Tanzania, East Africa, Africa
Water buffalo around a safari vehicle in the Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
View from the Mount Pico, Pico Island, Azores, Portugal, Atlantic, Europe
Bingham Canyon Copper Mine, Salt Lake City, Utah, United States of America, North America
Main open-pit copper-sulphur mine at Rio Tinto, Huelva, Southwest Spain, Europe
Tourist jeeps on safari at sunrise, Ngorongoro Crater Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Sunrise, Ngorongoro Crater Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Lion (Panthera leo), Ngorongoro Crater Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Cattle egret (Bubulcus ibis) and hippo (Hippopotamus amphibius) at a water hole, Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Inside the crater on the top of Mount Kilimanjaro with the highest point Uhuru Peak at the end of the ridge, UNESCO World Heritage Site, Tanzania, East Africa, Africa
View over the Sete Cidades crater, Island of Sao Miguel, Azores, Portugal, Atlantic, Europe
Wildebeest (gnu) (Connochaetes taurinus) and plains zebras (Equus quagga), Ngorongoro Crater, Ngorongoro Conservation Area, UNESCO World Heritage Site, Serengeti, Tanzania, East Africa, Africa
View of Sunset Crater Volcano from the east slope of the Lenox Crater Trail, the dark gray soil is volcanic pumice, Arizona, United States of America, North America
Panorama view of O'Leary Peak on the left and Sunset Crater on the right from the Bonito Lava Field near Flagstaff, Arizona, United States of America, North America
Panorama of the western Bonito Lava Field at Sunset Crater Volcano, Arizona, United States of America, North America
Super Pan view of the Cinder Hills on left and the eastside of Sunset Crater on the right, near Flagstaff, Arizona, United States of America, North America
Burned out tree on the left with Sunset Crater Volcano in the background, near Flagstaff, Arizona, United States of America, North America
Lesser flamingos (Phoenicopterus minor) feeding on crater lake, Tanzania, East Africa, Africa
Lesser flamingos (Phoenicopterus minor) feeding on crater lake, Tanzania, East Africa, Africa
Common zebras (Equus quagga) in the Ngorongoro crater, Ngorongoro Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Female waterbuck (Kobus ellipsiprymnus), Ngorongoro crater, Ngorongoro Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa