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Sunrise at the volcano slopes Red Crater, Tongariror Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald Lakes at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald Lakes at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Emerald lake on volcano slope, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
View along the slope and hiking trail up towards the Red Crater Volcano, on Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Close up of turquoise, vibrant Emerald Lake with steaming volcano, Tongariro Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Close up of turquoise, vibrant Emerald Lake with steaming volcano on Tongariro Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Miradouro do Cerrado das Freiras viewpoint on the huge volcanic crater that is now Lagoa Azul on Sao Miguel island, Azores Islands, Portugal, Atlantic, Europe
Mount Mahawu, a stratovolcano and active 180m wide crater, with Lokon on the left, and Empung volcanoes beyond, Gunung Mahawu, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia
Japanese warning sign on the Crater rim of Mount Naka, an active volcano, Mount Aso, Kyushu, Japan, Asia
Panoramic view, crater of Blue Lake and Tongariro Volcano at sunrise, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
People looking at view of Stromboli island from Gran crater rim, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Hverfell Crater rising out of the Dimmuborgir Lava Field, Myvatn Region, Iceland, Polar Regions
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
Mount Lokon volcano with Tompaluan active crater on the saddle between next door Mount Empung, near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia
Aerial view of Vesuvius crater and Sorrento peninsula at sunrise, Naples, Campania, Italy, 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
Randecker Maar, former volcanic pipe, Ochsenwang, Swabian Alps, Baden-Wurttemberg, Germany, Europe
Steaming fumaroles, sulphur and volcanic strata in Tompaluan active crater by Mount Lokon volcano near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia
Sulphur for sale on the Crater rim on Mount Naka, an active volcano, Mount Aso, Kyushu, Japan, Asia
The three emerald lakes and volcano landscape of the Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Panoramic of Naples city lights and Gulf at dusk from Vesuvius, Naples, Campania, Italy, Europe
Gran Cratere and Aeolian Islands view, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Mounts Lokon on the left, and Empung, with Tompaluan active crater on the saddle between, two volcanoes near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia
Sunrise above the Emerald Lakes, view from red crater, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Grand Prismatic Spring and Excelsior Pool behind, Midway Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Geologists taking minerals samples on Gran Cratere (The Great Crater), Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Steaming fumarole with sulphur deposits in Tompaluan active crater by Mount Lokon volcano near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia
View along the slope and hiking trail up towards the Red Crater Volcano, on Tongariro Alpine Crossing, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
The crater of a volcano on the island of Santo Antao, Cape Verde Islands, Atlantic Ocean
Miradouro do Cerrado das Freiras viewpoint on the huge volcanic crater that is now Lagoa Azul on Sao Miguel island, Azores Islands, Portugal, Atlantic, Europe
Gran Cratere (The Large Crater), 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
Sulphurous fumaroles and volcanic strata in Tompaluan active crater on the flank of Mount Lokon, a volcano near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia Indonesia
Panorama of the red sunrise on Red Crater Volcano and view of Mount Tongariro, North Island, New Zealand, Pacific
The Blue Crater Lake of Viti, which appeared after an eruption in 1875, part of the sulphurous geothermal area of Namafjall, Reykjahlio, Iceland
One of the Emerald Lakes, explosion craters filled with mineral-tinted water, on Mount Tongariro in the Tongariro National Park on the central plateau, North Island, New Zealand
Smoke rises from the active crater of Tungurahua Volcano that threatens the nearby resort town of Banos, Ambato Province, Central Highlands, Ecuador, South America
Sulphur and fumaroles smoke on volcano Gran Cratere, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Aerial of the volcanic crater with Lake Mazafim, island of Annobon, Equatorial Guinea, Africa
View over the volcanic crater Taburiente, La Palma, Canary Islands, Spain, Europe
Night view of lava flowing down from Eyjafjallajokull volcano, Iceland, Polar Regions
Crater rim on Mount Naka, an active volcano, Mount Aso, Kyushu, Japan, Asia
Crater rim path on Mount Naka, an active volcano, Mount Aso, Kyushu, Japan, Asia
An adult Eurasian golden plover (Pluvialis apricaria), near Eldborg Volcanic Crater, Iceland, Polar Regions
Aerial view of the crater of Hondo volcano (Calderon Hondo), Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Ngorongoro crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Crater rim path on Mount Naka, an active volcano, Mount Aso, Kyushu, Japan, Asia
Eldborg volcanic crater, declared a Protected Natural Monument in 1974, Iceland, Polar Regions
Crater of Ranu Kau, Rapa Nui (Easter Island), Chile, South America
Lava flowing down mountain, Eyjafjallajokull volcano, Iceland, Polar Regions
Ubehebe Crater, a volcanic crater half a mile across and 600 feet deep, Death Valley National Park, California, United States of America, North America
View of Gran Cratere and Finicudi Island, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Viti Crater, Krafla, Iceland, Polar Regions
View of Stefanos Crater and mountains,Nisyros, Dodecanese, Greece, Europe
Crater of Ranu Kau, Rapa Nui (Easter Island), Chile, South America
Sulphur and fumarole smoke on volcano Gran crater, Vulcano Island, Aeolian Islands, UNESCO World Heritage Site, north of Sicily, Italy, Mediterranean, Europe
Crater rim on Mount Naka active volcano, Mount Aso, Kyushu, Japan, Asia
Volcanic crater before the smoking Kilauea Summit Lava Lake in the Hawaii Volcanoes National Park,UNESCO World Heritage Site, Big Island, Hawaii, United States of America, Pacific
Heat haze in the sky at sunrise over majestic volcanoes, Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
View of the volcanic crater of Glassford Hill in Prescott Valley, Arizona, United States of America, North America
El Sod Crater lake, Southern Ethiopia, Africa
An aerial view of the Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Crater lake in the Poas volcano, San Jose, Costa Rica, Central America
Aerial view of volcanoes and craters with the Atlantic Ocean in the background, Corralejo, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Mount Bromo volcanic crater at sunrise, Bromo Tengger Semeru National Park, Java, Indonesia, Southeast Asia, Asia
The huge caldera of the Crater Lake National Park, Oregon, United States of America, North America
Volcanic crater island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
The caldera of the Crater Lake National Park, Oregon, United States of America, North America
Sunset from the volcanic crater of Pico del Teide, Teide National Park, Tenerife, Canary Islands, Spain, Europe
A view of the volcanic crater and colourful crater lake on Santa Ana Volcano in Santa Ana, El Salvador, Central America
A view of the volcanic crater on Santa Ana Volcano in Santa Ana, El Salvador, Central America
Poas Volcano, Poas National Park, Costa Rica
Mount Bromo volcanic crater at sunrise, Bromo Tengger Semeru National Park, Java, Indonesia, Southeast Asia, Asia
The huge caldera of the Crater Lake National Park, Oregon, United States of America, North America
Poas Volcano, Poas National Park, Costa Rica
Moai in the Rano Raraku volcanic crater formed of consolidated ash (tuf), Easter Island, UNESCO World Heritage Site, Chile, South America
A view of the volcanic crater and colourful crater lake on Santa Ana Volcano in Santa Ana, El Salvador, Central America
Moai in the Rano Raraku volcanic crater formed of consolidated ash (tuf), Easter Island, UNESCO World Heritage Site, Chile, South America
Ubehebe Crater, a volcanic crater half a mile across and 600 feet deep, Death Valley National Park, California, United States of America, North America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
Volcanic crater on top of the Haleakala National Park, Maui, Hawaii, United States of America, Pacific
Volcanic crater on top of the Haleakala National Park, Maui, Hawaii, United States of America, Pacific
Cold lava walls in the Craters of the Moon National Park, Idaho, United States of America, North America
Late afternoon light on the Crater Lake of the Crater Lake National Park, Oregon, United States of America, North America
Moai in the Rano Raraku volcanic crater formed of consolidated ash (tuf), Easter Island, UNESCO World Heritage Site, Chile, South America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
Walkway through cold lava in the Craters of the Moon National Park, Idaho, United States of America, North America
El Sod crater lake, South Omo Valley, Ethiopia, Africa
Perfect example of strato-volcano, island cone left by subsidence, Crater Lake, Oregon, United States of America (U.S.A.), North America
Silverswords, a plant unique to Hawaii which flowers once then dies, growing in vast crater of Haleakala, the world's largest dormant volcano, Maui, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America
Fumaroles on the crater edge, island of Vulcano, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
One of three crater lakes at the summit of Kelimutu volcano near Moni, soil chemical creates the unusual colours, island of Flores, Indonesia, Southeast Asia, Asia
The smoking crater of Volcan Villarrica, 2847m, Lake District, Chile, South America
View east along crater rim from Orongo ceremonial village of the Rano Kau crater, Easter Island, Chile, Pacific, South America
Meteor crater, the largest known in the world, Arizona, United States of America, North America
Masai cattle after rain, Ngorongoro crater, Ngorongoro Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
The crater on Vulcano, Aeolian Islands, UNESCO World Heritage Site, island of Sicily, Italy, Mediterranean, Europe