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Mount Wilson in the winter, Uncompahgre National Forest, Colorado, United States of America, North America
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Anasazi Ruins, Cliff Palace, dating from between 600 AD and 1300 AD, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Mount Sneffels with fresh snow, San Juan Mountains, Uncompahgre National Forest, Colorado, United States of America, North America
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Anasazi Ruins, Cliff Palace, dating from between 600 AD and 1300 AD, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) in its Alpine environment, San Juan National Forest, Colorado, United States of America, North America
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Sulphur Paintbrush and Alpine tarns at dawn, San Juan National Forest, Colorado, United States of America, North America
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Lizard Head in the winter, Uncompahgre National Forest, Colorado, United States of America, North America
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Hazleton Mountain in the winter, San Juan Mountains, Colorado, United States of America, North America
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Bear Lake in winter, Rocky Mountain National Park, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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North America, USA, United States of America, Colorado, Rocky Mountain National Park, view of longs peak at night, (MR)
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Sunset over an Alpine tarn at Stoney Pass, San Juan National Forest, Colorado, United States of America, North America
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Clouds reflected in a tarn at Stony Pass, San Juan National Forest, Colorado, United States of America, North America
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Sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
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Cloud over the Sneffels Range in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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North America, USA, United States of America, Colorado, Great Sand Dunes National Park, sunset
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North America, USA, United States of America, Colorado, Rocky Mountain National Park, view of Longs Peak at sunrise,
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Great Sand Dunes National Park and Preserve, near town of Alamosa, Colorado, USA
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Aspen trees in autumn below Longs Peak, a mountain above 14000 feet, known as a 14er, Rocky Mountain National Park, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Sand dunes in the Great Sand Dunes National Park and Preserve with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
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Sand dunes in the Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
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Hiker and tent illuminated under the night sky, Great Sand Dunes National Park, Colorado, United States of America, North America
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1930s CLIFF PALACE LARGEST CLIFF DWELLING IN MESA VERDE NATIONAL PARK COLORADO USA
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Swift fox (Vulpes velox) vixen and three kits at their den, Pawnee National Grassland, Colorado, United States of America, North America
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Mount Sneffels with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Swift fox (Vulpes velox) kits playing, Pawnee National Grassland, Colorado, United States of America, North America
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Mountain goat (Oreamnos americanus) nanny resting, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
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Yellow aspens among evergreens in the fall reflected in a lake, Uncompahgre National Forest, Colorado, United States of America, North America
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Wilson Peak at dawn in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Wilson Peak at dawn with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Man sat along Trail Ridge Road in the Rocky Mountain National Park, Colorado, USA
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Mears Peak with snow and yellow aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Mount Sneffels at first light with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Mount Sneffels with snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Rosy paintbrush (Castilleja rhexifolia), Gunnison National Forest, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Snow-covered mountain in the Sneffels Range in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Wilson Peak with a dusting of snow in the fall, San Juan National Forest, Colorado, United States of America, North America
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Tent illuminated under the night sky, Rocky Mountain National Park, Colorado, United States of America, North America
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Swift fox (Vulpes velox) vixen and kits, Pawnee National Grassland, Colorado, United States of America, North America
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Hikers on the sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the background, Colorado, United States of America, North America
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Aspen trunks among yellow leaves, Uncompahgre National Forest, Colorado, United States of America, North America
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Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America
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Yellow aspen trees reflected in Priest Lake in the fall, San Juan National Forest, Colorado, United States of America, North America
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Wilson Peak at dawn in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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Mountain goat (Oreamnos americanus) nanny and kid, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
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Mears Peak with snow and yellow aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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American pika (Ochotona princeps) calling, San Juan National Forest, Colorado, United States of America, North America
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White-tailed ptarmigan (Lagopus leucurus) in summer plumage, San Juan National Forest, Colorado, United States of America, North America
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North America, USA, United States of America, Colorado, Great Sand Dunes National Park
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Summit of Longs Peak, a mountain above 14000 feet, known as a 14er, Rocky Mountain National Park, Colorado, United States of America, North America
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Patches of yellow aspens in the fall under pink clouds, Uncompahgre National Forest, Colorado, United States of America, North America
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Swift fox (Vulpes velox) vixen grooming a kit, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox) adults and two kits, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox) vixen nursing her four kits at their den, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox) vixen nursing three kits, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox) adult and two kits, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox) vixen grooming a kit, Pawnee National Grassland, Colorado, United States of America, North America
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Swift fox (Vulpes velox), Pawnee National Grassland, Colorado, United States of America, North America
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