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A dilapidated bridge along the Johnson Canyon Railroad, Kaibab National Forest of Arizona, USA
A narrow and overgrown section of the abandoned Johnson Canyon Railroad in the Kaibab National Forest of Arizona, USA
View from below the rim of the giant sinkhole known as Johnson Crater in the Kaibab National Forest near Ash Fork Arizona, USA
Sandstone rock tower beside a large dry salt lake in the Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia
Towering Limestone Stacks of Pancake Rocks Surrounded by Crashing Waves at Punakaiki, West Coast, New Zealand
Rock formations in the oasis Tigui, Tibesti Mountains, Chad
Geological Devil's Bridge, a natural arch carved by the sea from soft and hard limestone ledges of the Antigua formation, Antigua, Leeward Islands, West Indies, Caribbean, Central America
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
The intertidal zone of the Quantock Coast, West Somerset, contains an abundance of geology and wildlife. It is a Site of Special Scientific Interest (SSSI) and is of international geological importance.
A deep canyon eroded thru the hills of purple and gray bentonite clay near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
White, tan, and red sandstone butte, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Aerial photo of Namib Naukluft National Park, Namibia, Africa
The Red Pyramid (Senefru Pyramid), Dahshur, UNESCO World Heritage Site, near Cairo, Egypt, North Africa, Africa
Karnak Temple, UNESCO World Heritage Site, near Luxor, Egypt, North Africa, Africa
Wadi Rum, UNESCO World Heritage Site, Jordan, Middle East
Aerial of the Nuuk Icefjord, Western Greenland, Denmark, Polar Regions
Aerial drone top down view of Nazare lighthouse with waves crashing on rocks beneath, Nazare, Oeste, Estremadura, Portugal, Europe
Millstone, Curbar Edge, Peak District National Park, in summer, Derbyshire, England, United Kingdom, Europe
Grand Canyon, Navajo Point, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Grand Canyon, from Hermit Road, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Aerial of the Andes mountains, Chile, South America
Looking down on the deep blue Katsura River, in the autumnal forests in Arashiyama of Kyoto, Honshu, Japan, Asia
The eroded top of the Pyramid of Khafre in Giza, UNESCO World Heritage Site, near Cairo, Egypt, North Africa, Africa
A purple canyon with a dry creek in between hills of bentonite in Petrified Forest National Park, Arizona, United States of America, North America
Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Minaret, volcanic tuff pillars and erosion surrounding Goreme, Cappadocia, Anatolia, Turkey, Asia Minor, Asia
Huge arch in the Natural Bridges State Park, Newfoundland, Canada, North America
Lower Antelope, a slot canyon, Arizona, United States of America (U.S.A.), North America
Upper Antelope Canyon, Arizona, United States of America, North America
Capo d'Orso at sunset, Palau, Sardinia, Italy, Mediterranean, Europe
Tabular icebergs in and around the Weddell Sea during the summer months, Antarctica, Southern Ocean, Polar Regions
The North Valley below the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
Nisyros volcano, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe
Hiker walking down the stream between eroded entrada sandstone slot canyon walls at Willis creek, Grand Staircase-Escalante National Monument, Kane County, Utah, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
Eroded landscape in the Dinosaur Provincial Park, UNESCO World Heritage Site, Alberta, Canada, North America
Zabriskie Point, Death Valley National Monument, California, United States of America (USA), North America
Sandstone formations with clouds, Coyote Buttes Wilderness, Vermilion Cliffs National Monument, Arizona, United States of America, North America
A single moai at Fisherman's Harbor in the town of Hanga Roa, Rapa Nui National Park, UNESCO World Heritage Site, Easter Island (Isla de Pascua), Chile, South America
Curia Gate, Sabrata (Sabratha), UNESCO World Heritage Site, Tripolitania, Libya, North Africa, Africa
Congo river rapids, Kinshasa, Democratic Republic of Congo, Africa
Castellana caves (Castellana Grotte), Apulia, Italy, Europe
Aguila glacier, Tierra del Fuego, Chile, South America
Detail of wind and water erosion in the sandstone cliffs of the King George River, Koolama Bay, Kimberley, Western Australia, Australia, Pacific
An eroded sandstone formation called a Sandcastle, below the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
An eroded Sandstone hoodoo formation north of the Horseshoe Bend Overlook along the Colorado River in Page, Arizona, United States of America, North America
Gritstone Rocks at the Surprise View overlooking Otley from The Chevin, West Yorkshire, Yorkshire, England, United Kingdom, Europe
Rock formation known as Swirls on Colorado Plateau, Arizona, United States of America (U.S.A.), North America
White and pink sandstone formations, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Bryce Canyon National Park, Utah, United States of America, North America
Sea Stack at Downpatrick Head, near Ballycastle, County Mayo, Connacht, Republic of Ireland, Europe
Plateau and canyon country rising 2000 feet above the Grand Valley of the Colorado River, part of the Great Colorado Plateau, Colorado National Monument, Colorado, United States of America, North America
Roque Nublo, Gran Canaria, Canary Islands, Spain, Europe
Durdle Door, Lulworth Cove, Jurassic Coast, UNESCO World Heritage Site, Dorset, England, United Kingdom, Europe
Antelope Canyon, Arizona, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
Aerial view of the interior of the island of Kauai, including Waimea Canyon, Hawaii, United States of America, North America
Canyonlands National Park in winter, Utah, United States of America (U.S.A.), North America
Rock formations at Spitzkoppe, between Windhoek and Swakopmund, Namibia, Africa
Woman looking over Grand Canyon, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
The Red Pyramid (Senefru Pyramid), Dahshur, UNESCO World Heritage Site, near Cairo, Egypt, North Africa, Africa
Single tree on limestone pavement, Ingleborough National Nature Reserve, Yorkshire Dales, North Yorkshire, England, United Kingdom, Europe
A granite rock formation along the Hole in the Wall Trail in Constellation Park in Prescott giving the trail its name, Arizona, United States of America, North America
Antelope Canyon, Arizona, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
A famous rock arch formation in Sedona on the top of Mitten Ridge known as Elephant Head Arch, Arizona, United States of America, North America
Pinnacles and rock formations caused by erosion viewed from Inspiration Point, in the Bryce Canyon National Park, Utah, United States of America, North America
Rock formation known as Swirls, on Colorado Plateau, Arizona, United States of America (U.S.A.), North America
Pinnacles Desert, Nambung National Park, Western Australia, Australia, Pacific
Cliffs near Ashleam, Achill Island, County Mayo, Connacht, Republic of Ireland, Europe
Virgin River Narrows, Zion National Park, Utah, United States of America, North America
Carrington Falls, Budderoo National Park, New South Wales, Australia, Pacific
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
Antelope Canyon, Navajo Tribal Park, Page, Arizona, United States of America, North America
Horseshoe Bend, Colorado River, Utah, United States of America (U.S.A.), North America
Layers of tan sandstone, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
White and pink sandstone ridges, White Pocket, Vermilion Cliffs National Monument, Arizona, United States of America, North America
Upper Antelope Canyon, Arizona, United States of America, North America
El Nido, Palawan, Philippines, Southeast Asia, Asia
Looking towards Isle of Rum at twilight from rocks at Singing Sands (Camas Sgiotaig), Isle of Eigg, Inner Hebrides, Scotland, United Kingdom, Europe
Moeraki boulders, Moeraki, Otago, South Island, New Zealand, Pacific
Hoodoo spires rising above the valley below the south side of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America
Moeraki boulders, Moeraki, Otago, South Island, New Zealand, Pacific
Red and white sandstone stripes at sunrise, Valley of Fire State Park, Nevada, United States of America, North America
Detail of sandstone with circular rings, Valley of Fire State Park, Nevada, United States of America, North America
Unusual limestone rock formations near Corong, Bacuit Bay, El Nido Town, Palawan Province, Philippines, Southeast Asia, Asia
Plateau and canyon country rising 2000 feet above the Grand Valley of the Colorado River, part of the Great Colorado Plateau, Colorado National Monument, Colorado, United States of America, North America
Virgin River Narrows, Zion National Park, Utah, United States of America, North America
Lower Antelope Canyon, near Page, Arizona, United States of America, North America
Coast, Sark, Channel Islands, United Kingdom, Europe
Aerial of the sandstone erosion landscape of Miradouro da Lua (Viewpoint of the Moon), south of Luanda, Angola, Africa
Rock formation caused by erosion known as Delicate Arch, 45 ft high and 33 ft wide, in the Arches National Park in Utah, United States of America, North America
Mexican Hat Rock, near Mexican Hat, Utah, United States of America (U.S.A.), North America
Erosion with volcanic tuff pillars, Pasabagi, near Goreme, Cappadocia, Anatolia, Turkey, Asia Minor, Asia
Upper Antelope, a slot canyon, Arizona, United States of America (U.S.A.), North America
Rock formation known as Swirls, on Colorado Plateau, Arizona, United States of America (U.S.A.), North America