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Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
The reservoir at Sand Hollow State Park, near St. George, Utah, United States of America
Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America
Trail signs showing directions to Pico Ruivo and Encumeada, Santana, Madeira, Portugal, Atlantic, Europe
Aloe arborescens on edge of cliff, Quinta do Furao, Santana, North coast, Madeira island, Atlantic Ocean, Portugal
Hikers on ancient path used by villagers to cross the island North to South, on the heights of Santana, Madeira island, Atlantic Ocean, Portugal
Hiker on ancient path used by villagers to cross the island North to South, on the heights of Santana, Madeira island, Atlantic Ocean, Portugal
Hikers on path along levada (aqueduct) of Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal
Hiker on path along levada (aqueduct) of Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal
Hiker on path along levada (aqueduct) of Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal
Waterfall in Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal
Hikers on a path along levada (aqueduct) of Green Cauldron (Caldeirao Verde), Madeira island, Atlantic Ocean, Portugal
Hiking trail from Prazeres to Paul do Mar, Madeira island, Atlantic Ocean, Portugal
Shrine at entrance to levada tunnel (aqueduct) around Rabacal, Paul da Serra plateau, Madeira island, Atlantic Ocean, Portugal
Hikers on Rabacal levada walk towards the 25 Fountains cirque, Madeira island, Atlantic Ocean, Portugal
25 Fountains cirque, Rabacal, Madeira island, Atlantic Ocean, Portugal
25 Fountains cirque, Rabacal, Madeira island, Atlantic Ocean, Portugal
Rabacal levada walk towards the 25 Fountains cirque, Madeira island, Atlantic Ocean, Portugal
Picnic on side of Rabacal levada walk towards the 25 Fountains cirque, Madeira island, Atlantic Ocean, Portugal
Mountain climbers descending from the Aiguille du Midi (Mont Blanc), France.
Mountain climbers descending from the Aiguille du Midi (Mont Blanc), France.
Path along a levada, Prazeres, Madeira island, Atlantic Ocean, Portugal
Trail from Prazeres to Paul do Mar, Madeira island, Atlantic Ocean, Portugal
Hiking trail from Prazeres to Paul do Mar, Madeira island, Atlantic Ocean, Portugal
Path on side of cliff toward Paul do Mar, Madeira island, Atlantic Ocean, Portugal
Hikers along Abra Bay, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Sidestepping path on the Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Young woman walking along Abra Bay, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Abra Bay, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Young woman walking on Cevada islet, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Abra Bay, Sao Lourenco peninsula, Madeira island, Atlantic Ocean, Portugal
Levada (aqueduct) on the heights of Machico, Madeira island, Atlantic Ocean, Portugal
Eira do Serrado site above village Curral das Freiras (Nuns valley), Madeira island, Atlantic Ocean, Portugal
Snowdon Mountain Railway, Llanberis, Gwynedd, Wales, United Kingdom
Greenland Lake reduced to a mud hole, Grand Canyon North Rim, UNESCO, Arizona, United States of America
The west entrance of Supai Tunnel on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
The Red Wall of sandstone east of Supai Tunnel on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
Red Wall cliffs of Roaring Springs Canyon on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
Ephemeral Spring on Red Wall of Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
The sheer cliff of the Red Wall along the North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
View above Red Wall Bridge crossing Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
Red Wall Bridge crossing 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
View of the Roaring Springs Canyon cliffs from the Red Wall Bridge, Grand Canyon North Rim, UNESCO, Arizona, United States of America
Lonely Boulders and exposed rock in Pleasant Valley, Kaibab National Forest just north of Grand Canyon North Rim, Arizona, United States of America
Looking back up the first leg of the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The Coconino Overlook along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The 11th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The 17th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The 18th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
A curve in the North Kaibab Trail between Coconino Overlook and the Supai Tunnel Rest Area, Grand Canyon, Arizona, United States of America
The 20th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America
The interior of the Supai Tunnel along the North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America
Loch Naver, Sutherland, Highland, Scotland, United Kingdom
Looking towards Ben Mor Coigach from Assynt, Sutherland, Highlands, Scotland, United Kingdom
Stac Pollaidh, Assynt, Sutherland, Highlands, Scotland, United Kingdom
Gap between two peaks of Mount Jianglang, Jiangshan City, Zhejiang Province, China
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
The granite riverbed of the Agua Fria River Canyon in the Agua Fria National Monument of Arizona.
Entrance to the Badger Springs Trailhead in the Agua Fria National Monument of Arizona.
Badger Springs Creek Canyon in the Agua Fria National Monument of Arizona.
Sign marking the Badger Springs Trail in the Agua Fria National Monument of Arizona.
Sign marking Badger Springs Road off of I-17 Arizona. This road leads to a hiking trail in the Agua Fria National Monument.
View of Black Canyon on the west side of the Agua Fria National Monument of Arizona with the Bradshaw Mountains in the distance.
A snowy winter woodland scene, near Princetown, in the heart of Dartmoor National Park, Devon, Great Britain.
dramatic coastline with rocks of Madeira, Portugal
Powys, Hay-on-Wye, Offa's Dyke Footpath, sign, United Kingdom
Sign at the entrance to the Zion National Park at Springdale, Utah, USA.
Sandstone rock formation in the Dixie National Forest, Utah, USA. The National Forest was created in 1906.
fanal laurel forest in madeira with majestic ancient trees
fanal laurel forest in madeira with majestic ancient trees
fanal laurel forest in madeira with majestic ancient trees
fanal laurel forest in madeira with majestic ancient trees
fanal laurel forest in madeira with majestic ancient trees
fanal laurel forest in madeira with majestic ancient trees
amazing sunrise in the mountains between Pico Do Arieiro and Pico Ruivo, Madeira, Portugal
View from summit of Pico do Areeiro, Madeira
Agua d'Alto waterfall, San Vicente, Madeira
Overlook over the Yenisei river, Tura, Krasnoyarsk Krai, Evenki state, Russia
Rainbow Mountain, Pitumarca District, Cusco (Cuzco) Region, Peru, South America
Skala Kitayskaya Stenka National Park, Krasnoyarsk, Siberia, Russia
Skala Kitayskaya Stenka National Park, Krasnoyarsk, Siberia, Russia
Skala Kitayskaya Stenka National Park, Krasnoyarsk, Siberia, Russia
View from summit of Pico do Areeiro, Madeira
View from summit of Pico do Areeiro, Madeira
View from summit of Pico do Areeiro, Madeira
Central mountains from Curral das Freiras, Madeira
Roadside waterfall, central mountains, Madeira
View from summit of Pico do Areeiro, Madeira
Central mountains Madeira