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The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
The towering cliffs of the Zion National Park, Utah, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
Early morning sunlight shining on the towering cliffs of the Zion National Park, Utah, United States of America, North America
Capitol Reef National Park, Utah, United States of America, North America
Redrock sandstone formations in the Kodachrome Basin State Park, Utah, United States of America, North America
Road leading through the Capitol Reef National Park, Utah, 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
Travertine terraces in Mammoth hot springs terraces, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
The Cliff Palace Indian dwelling, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
Stone wall of the Window section, Arches National Park, Utah, United States of America, North America
The colourful sandstone formations of the Bryce Canyon National Park in the late afternoon, Utah, United States of America, North America
Dead tree in the Capitol Reef National Park, Utah, United States of America, North America
The towering cliffs of the Zion National Park, Utah, United States of America, North America
The colourful Grand Canyon of the Yellowstone, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America
Beautiful red sandstone formations in the Arches National Park, Utah, United States of America, North America
Dawn view of Mount Bromo (near left) and Gunung Semeru (centre background) in Bromo Tengger Semeru National Park, Indonesia.
Gunung Semeru, an active stratovolcano in Bromo Tengger Semeru National Park, Java, Indonesia.
Ephemeral arch, valley of fire state park, nevada, usa, nord amerika
Bryce canyon in winter, view from sunset point, hoodoos at surise, bryce canyon national park, paunsaugunt plateau, utah, usa
Ephemeral arch, valley of fire state park, nevada, usa, north america
Interior of the Baradla-Domica cave system in the Aggtelek National park which stradles the border between Hungary and Slovakia.
Bryce canyon in winter, view from sunset point, hoodoos at surise, bryce canyon national park, paunsaugunt plateau, utah, usa
Interior of the Baradla-Domica cave system in the Aggtelek National park which stradles the border between Hungary and Slovakia.
Ephemeral arch, valley of fire state park, nevada, usa, north america
Interior of the Baradla-Domica cave system in the Aggtelek National park which stradles the border between Hungary and Slovakia.
Bryce canyon in winter, view from sunset point, hoodoos at surise, bryce canyon national park, paunsaugunt plateau, utah, usa
Ponderosa pine, pinus ponderosa, gelb-kiefer, gold-kiefer, ponderosa-kiefer, tree growing on sandstone, zion national park, utah, usa,
Interior of the Baradla-Domica cave system in the Aggtelek National park which stradles the border between Hungary and Slovakia.
Geology, usa. Utah, dead horse point state park
Grand canyon in winter, view from south rim, colorado river, grand canyon national park, arizona, usa
08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands
Aerial view of the Tres Virgenes National Park, Baja California Norte, Mexico
Deer Park, Martins Haven, Pembrokeshire, Wales, UK, Europe
08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands
Margorie Glacier in Glacier Bay National Park, Southeast Alaska, USA, Pacific Ocean.
08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands
08/04/2009. Spain, España, Canary Islands, Canarias, Tenerife, Los Roques de Garcia and Mount Teide. Volcanic landscape and rock formation with people. . Santa Cruz, Teide National Park, Tenerife Island. Canary Islands
Old Red Sandstone seacliffs, St. Anne's Head, Pembrokeshire Coast National Park, West Wales, UK
Johns Hopkins Glacier in Glacier Bay National Park, Southeast Alaska, USA.
Deer Park, Martins Haven, Pembrokeshire, Wales, UK, Europe
Park ranger with AK-47 Machine gun, Volcanos National Park, Rwanda
Balcon de Pilatos area. Urbasa y Andia Natural Park. Navarre, Spain, Europe
Potato fields on small farms near Volcanos National Park, Rwanda
Potato fields on small farms near Volcanos National Park, Rwanda
Glory Pool Yellowstone National Park WY
Rock formations and hoodoos in the morning, Sunrise Point, Bryce Canyon National Park, Utah, United States, America
Rock formations and hoodoos in the evening, Bryce Canyon National Park, Sunset Point, Utah, USA, America
Rock formations and hoodoos in the evening, Bryce Canyon National Park, Sunset Point, Utah, USA, America
Balanced Rock rock formation in the morning, Arches National Park, Utah, United States, America
Sandstone rock formation at Tikobaouine, Tassili n'Ajjer National Park, Unesco World Heritage Site, Wilaya Illizi, Algeria, Sahara, North Africa
Mound and Jupiter Spring Terrace, Main Terrace, limestone sinter terraces, geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA
Delicate Arch, rock arch, La Sal Mountains, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
Balanced Rock, rock formation, thunderstorm clouds, lightning, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
Minerva Spring Terrace, Lower Terraces, limestone sinter terraces, geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA
Parinacota volcano reflecting in the Chungara lake, Lauca national park, UNESCO Biosphere Reserve, Arica and Parinacota Region, Chile, South America
Erosion of a river bed, volcanic region of Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, near Waiouru, North Island, New Zealand
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
View of Bryce Amphitheater from Inspiration Point, coloured rock formations, fairy chimneys, morning light, Bryce Canyon National Park, Utah, USA, North America
Balanced Rock, rock formation, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
So-called sandfalls, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Tourist on a boardwalk amidst the steam of the springs and geysers, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Rock wall, Uluru, Ayers Rock, Uluru-Kata Tjuta National Park, Northern Territory, Australia
Caravan, Mid-Atlantic Rift zone, Thingvellir National Park, Iceland, Europe
Opalescent Pool, geyser, drainage area with coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Orange Mound Terrace, Upper Terraces, limestone sinter terraces, geysers, hot springs, colorful thermophilic bacteria, microorganisms, dead trees, Mammoth Hot Springs Terraces, Yellowstone National Park, Wyoming, United States of America, USA
Parinacota volcano reflecting in the Chungara lake, Lauca national park, UNESCO Biosphere Reserve, Arica and Parinacota Region, Chile, South America
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Punta Caroddi pinnacle in Cala Goloritze bay, in the evening light, Golfo di Orosei, Golfo di Orosei und Gennargentu National Park, Sardinia, Italy, Europe
Liberty Cap, extinct travertine cone geyser, Canary Spring Terrace, limestone sinter terraces, geysers, hot springs, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA
Sunset Lake, geyser, drainage area with a boardwalk, coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Mesa Arch stone arch at sunrise, Island in the Sky, Canyonlands National Park, Moab, Utah, USA, America
Rainbow and Cascade Terrace, Orakei Korako Cave and Thermal Park, Taupo-Rotorua, North Island, New Zealand
Dirt path, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Coloured thermophilic bacteria, the outlet of Cliff Geyser, Fire Hole River, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Rock formations and hoodoos in the evening, Bryce Canyon National Park, Sunset Point, Utah, USA, America
Punch Bowl Spring, geyser, drainage area, coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Rainbow and Cascade Terrace, Map of Africa, Orakei Korako Cave and Thermal Park, Hidden Valley, Taupo, Rotorua, North Island, New Zealand
Emerald Pool, geyser, drainage area with a boardwalk, coloured thermophilic bacteria, microorganisms, Black Sand Basin, Upper Geyser Basin, Yellowstone National Park, Wyoming, United States of America, USA
Gravel beach and the famous Koenigsstuhl chalk cliff on the Baltic Sea, Nationalpark Jasmund national park, Ruegen island, Mecklenburg-Western Pomerania, Germany Europe
Beam of light, red sandstone of the Moenkopi formation, rock formations, colours and textures in the Upper Antelope Slot Canyon, Page, Navajo Nation Reservation, Arizona, United States of America, USA
Oxararfoss waterfall on Mid-Atlantic Rift, Thingvellir National Park, Iceland, Europe
Thor's Hammer rock formation in the morning, Sunrise Point, Bryce Canyon National Park, Utah, United States, America
Balanced Rock, rock formation, evening mood, thunderstorm clouds, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
Rose Valley, Cappadocia, Anatolia, Turkey
Mesa Arch in the break of dawn, Canyonlands National Park, Utah, USA
View from the Dead Horse Point State Park on the Colorado River, Utah, USA
Delicate Arch, rock arch, La Sal Mountains, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
Devil's Thumb, Palette Spring Street, Lower Terraces, limestone sinter terraces, geysers, hot springs, colorful thermophilic bacteria, microorganisms, petrified trees, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of Am
Tourists at Firehole River, Yellowstone National Park, Wyoming, USA
View over Firehole River, Geyser Hill, Upper Geyser Basin, geothermal springs in Yellowstone National Park, Wyoming, United States of America, USA
Green River Overlook, The Maze, Canyonlands National Park, Moab, Utah, USA, America
Rock formations of Turret Arch, rock arch, Elephant Butte, North Window, South Window, Balanced Rock, Arches National Park, Moab, Utah, Southwestern United States, United States of America, USA
River bend, Gooseneck, Canyon, Colorado River, Dead Horse Point State Park, Utah, USA, America
Rose Valley, Cappadocia, Anatolia, Turkey
Rock formations and hoodoos, Bryce Canyon at sunrise, Bryce Point, Utah, Southwest, USA
Mesa Arch stone arch, Island in the Sky, Canyonlands National Park, Moab, Utah, USA, America
Drainage area of New Blue Spring Terrace, limestone sinter terraces, geysers, hot springs, colorful thermophilic bacteria, microorganisms, Mammoth Hot Springs Terraces in Yellowstone National Park, Wyoming, United States of America, USA