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January 27, 2011 - Dallol geothermal area, potassium salt deposits formed by brine hot springs, Danakil Depression, Ethiopia.
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.
Hikers on Rabacal levada walk towards the 25 Fountains cirque, Madeira island, Atlantic Ocean, Portugal
Hikers along Abra Bay, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Great Orme cliffs, Llandudno, Clwyd, Wales, United Kingdom
Snowdonia National Park (Eryri), Wales, United Kingdom
Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean
Very remote Shag Rocks, near South Georgia Island in the Scotia Sea, South Atlantic Ocean
Red Wall cliffs of Roaring Springs Canyon on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
View of Roaring Springs Canyon along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
Fern-Lined Lookout Over Crashing Waves and Rugged Coastline in Paparoa National Park, West Coast, New Zealand
Powerful Sea Blowhole Erupting Between Cliffs at Pancake Rocks, Punakaiki, Paparoa National Park, New Zealand
Creative Driftwood ‘Hokitika’ Beach Sculpture Against Stormy Sky on the West Coast, New Zealand
Sunlit Coastal Sand Dunes and Rugged Hills at Wharariki Beach Near Cape Farewell, South Island, New Zealand
Chalk cliffs, Jasmund National Park, Sassnitz, Rügen Island, Mecklenburg-Western Pomerania, Germany
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
Trekol ATVs, Salekhard, Yamal Peninsula, Russia
Sumidero Canyon, elevated view, Chiapas State, Mexico
Aerial of the Andes mountains, Chile, South America
Aerial of Sewell Mining Town, UNESCO World Heritage Site, Chile, South America
Bjarnarhofn Lava Field, Snaefellsnes Peninsula, Iceland
Icelandic Farmstead below Mount Eystrahorn in winter, Krossanesfjall Mountains, Southeast Iceland, Europe
Powerful Sea Surge Through Blowhole in Honey-Colored Rock at Pancake Rocks, Punakaiki, West Coast, New Zealand
Dramatic Rock Spires and Crashing Waves at Pancake Rocks, Punakaiki, Paparoa National Park, West Coast, New Zealand
Aguila glacier, Tierra del Fuego, Chile, South America
North face of Tre Cime di Lavaredo (Three Peaks of Lavaredo), Three Peaks Nature Park, Dolomites, UNESCO, South Tyrol (Alto Adige), Italy
Hikers in mist near the refuge Lavaredo, Three Peaks Nature Park, Dolomites, South Tyrol (Alto Adige), Italy
Vertical View of Pancake Rocks and Surf Below with Flax and Cliffside Vegetation in Punakaiki, New Zealand
Hiker on path between Locatelli and Pian di Cengia refuges with Punta dei Tre Scarperi behind, Three Peaks Nature Park, Dolomites, South Tyrol, Italy
Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America
A canyon that drains into Dead Wash, Petrified Forest National Park, Arizona, United States of America
A canyon that drains into Dead Wash, Petrified Forest National Park, Arizona, United States of America
An unnamed canyon that leads into Dead Wash at Petrified Forest National Park, Arizona, United States of America
Dead Wash Valley in Petrified Forest National Park, Arizona, United States of America
Watchman Mountain, 6545 ft, near Springdale, Utah, United States of America
Mountain scenery, Island of Corsica, France
Mountain scenery, Island of Corsica, France
The Needles, incredible Canyon landscape, Canyonlands National Park, Utah, United States of America, North America
Golden Canyon Interpretive Trail, Death Valley National Park, California, USA, North America
Tent Set Up Beside Mountain Lake with Rugged Peaks Reflected in Still Water, Nelson Lakes, New Zealand
Bright Blue Sky Over Sunlit Golden Tussock Hills and Rugged Outcrop, New Zealand
Narrow Rocky Inlet with Overhanging Trees and Low Tide Pool, Coastal Trail in Abel Tasman, New Zealand
Rocky Coastal Platform and Crashing Tasman Sea Swells at Punakaiki, West Coast, New Zealand
Sunset, Liathach, Torridon, northern Scotland
Allt Dearg Mor and Cullin Hills from near Sligachan, Isle of Skye, Scotland
Cullin Hills in winter, Isle of Skye, Scotland, UK
Sheep, Isle of Skye, Scotland
Bride's Veil Falls, Isle of Skye, Scotland
Buachaille Etive Mor, Scotland
Cullin Hills in winter, Isle of Skye, Scotland, UK
Stag, Rannoch Moor, Scotland
Golden evening light on the cliffs in winter at Dunraven Bay, Southerndown, Bridgend, South Wales, United Kingdom
Trekking camp in Ammeln valley, Anti-Atlas, Morocco
Matterhorn, Zermatt, Canton Valais, Switzerland
Dunnnottar Castle at sunrise, Stonehaven, Aberdeenshire, Scotland, United Kingdom
Rock formations in the oasis Tigui, Tibesti Mountains, Chad
Star Wars looking oasis Tigui, Tibesti Mountains, Chad
Star Wars looking oasis Tigui, Tibesti Mountains, Chad
Toubou rebels in the Tibesti Mountains, Chad
Tousside volcano above Trou du Natron, Tibesti Mountains, Chad
Aerial over Trou du Natron with volcano Tousside in the background, Tibesti Mountains, Chad
Full packed pick-up in the Sahel zone on his way to the Tibesti Mountains, Chad
Beautiful rock formations around Zouar, Tibesti Mountains, Chad
Aerial of the sunset over rocky mountains around Zouar, Tibesti Mountains, Chad
Aerial of the rocky mountains around Zouar, Tibesti Mountains, Chad
Rocky mountain in Zouar, Tibesti Mountains, Chad
Aerial of beautiful rock formations around Zouar, Tibesti Mountains, Chad
View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland
Truck stuck in the sand dunes of the Tibesti Mountains, Chad
Full packed truck in the Sahel zone on his way to the Tibesti Mountains, Chad
Northern (Steller) sea lions (Eumetopias jubatus) hauled out on South Marble Island in Glacier Bay National Park, Alaska, United States of America
Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America
Three Sisters, Monument Valley Navajo Tribal Park, Utah, United States of America
West Mitten Butte, Monument Valley Navajo Tribal Park, Utah, United States of America
Totem Pole and Yei Bi Chei, Monument Valley Navajo Tribal Park, Utah, United States of America
Adult mountain goat (Oreamnos americanus) on cliff face in Tracy Arm, Southeast Alaska, United States of America
View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland
The wild coast of northern Saint Anthony, Cape Verde
Desert landscape in the far southwest of Saint Anthony, Cape Verde
The spectacular scenery of the north coast and volcanic highlands of Saint Anthony, Cape Verde
Scenery in the lush oasis of the Paul Valley, northern Saint Anthony, Cape Verde
Maasai man standing on the top of a rock looking at the landscape, in the area around Namanga, Kenya, East Africa
Mount Eystrahorn in winter, Krossanesfjall Mountains, Iceland
Fern and birch wood, Nordmannvikdalen valley, region of Lyngen, County of Troms, Norway, Northern Europe
A view of sea cliffs and stacks in the Langanes peninsula in the northeast part of Iceland
view of Volcanoes and the Volcanic landscape with the Atlantic Ocean in the Timanfaya national park in Lanzarote in the Canary Islands, Spain
Volcanic landscape with small plants in the Timanfaya national park in Lanzarote in the Canary Islands, Spain
View over the fjord Bergsfjorden from Husfjellet mountain.Senja island.County of Troms, Norway, Northern Europe
Icebergs floating in the Lagoon beneath Breidamerkurjokull Glacier, Jokulsarlon (Glacial River Lagoon), southern Vatnajokull, southern area, Iceland, Polar Regions
Grant Range, Great Basin, Nevada, United States of America, North America
The Blue Crater Lake of Viti, which appeared after an eruption in 1875, part of the sulphurous geothermal area of Namafjall, Reykjahlio, Iceland
Mount Sir Donald, Glacier National Park, Rocky Mountains, British Columbia (B.C.), Canada, North America
Backlit hoodoos and Thor's Hammer in evening light, Bryce Canyon National Park, Utah, United States of America, North America
Trajan's Plaque, a marble Roman plaque on the banks of the Danube River in the Kazan Gorge region of the river, Serbia, Europe
Mourne Mountains, County Down, Ulster, Northern Ireland, United Kingdom, Europe
Dramatic rugged mountain range with a lake, Laguna del Rio Secco and Pico del Pulpito, Sierra Nevada, Andalusia, Spain, Europe
Hiking trail along rugged arid mountain valley of the Sierra Nevada, Andalusia, Spain, Europe