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Sneffels Range in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Yellow aspens and cottonwoods in the fall with fog, Uncompahgre National Forest, Colorado, United States of America, North America
Yellow aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Snow-covered mountain in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Snow-covered Sneffels Range in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Snow-covered mountain in the fall with fog, Uncompahgre National Forest, Colorado, United States of America, North America
American pika (Ochotona princeps), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Thirteen-lined ground squirrel (Citellus tridecemlineatus) feeding, Pawnee National Grassland, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Swift fox (Vulpes velox) kit, Pawnee National Grassland, Colorado, United States of America, North America
Queen's crown (rose crown) (redpod stonecrop) (Clementsia rhodantha) (Sedum rhodanthum) (Rhodiola rhodantha), San Juan National Forest, Colorado, United States of America, North America
Two yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) sparring, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Alpine sunflowers (Hymennoxys grandiflora), Maroon Lake, Maroon Bells Peaks in background, Maroon Bells Scenic Area, Colorado, United States of America, North America
City skyline viewed across the Colorado River, Austin, Texas, United States of America, North America
Sunrise in an Alpine meadow with wildflowers, San Juan National Forest, Colorado, United States of America, North America
Female lark bunting (Calamospiza melanocorys), Pawnee National Grassland, Colorado, United States of America, North America
Least chipmunk (Tamias minimus) (Neotamias minimus (Eutamias minimus), San Juan National Forest, Colorado, United States of America, North America
Clouds over the palisades at Owl Creek Pass in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Yellow aspen trees in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Mountain goat (Oreamnos americanus), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
American pika (Ochotona princeps) eating grass, San Juan National Forest, Colorado, United States of America, North America
Cloudy sky above an Alpine tarn, San Juan National Forest, Colorado, United States of America, North America
Rosy pintbrush (Castilleja rhexifolia), Gunnison National Forest, Colorado, United States of America, North America
Rosy paintbrush (Castilleja rhexifolia), Gunnison National Forest, Colorado, United States of America, North America
Dirt road through yellow aspen in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Sneffels Range with fall colors, near Ouray, Colorado, United States of America, North America
City skyline viewed across the Colorado River, Austin, Texas, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Swift fox (Vulpes velox), Pawnee National Grassland, Colorado, United States of America, North America
Two bighorn sheep (Ovis canadensis) rams head butting, Clear Creek County, Colorado, United States of America, North America
Swift Fox (Vulpes velox) family of a vixen and four kits, Pawnee National Grassland, Colorado, United States of America, North America
American pika (Ochotona princeps), San Juan National Forest, Colorado, United States of America, North America
Yellow aspen trees in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Clouds over the palisades at Owl Creek Pass in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Female Ring-Tailed Lemur (Lemur catta) sunning herself, in captivity, Denver Zoo, Denver, Colorado, United States of America, North America
Mesa Verde National Park, Fire Temple, UNESCO World Heritage Site, Colorado, United States of America, North America
Two bighorn sheep (Ovis canadensis) rams head butting, Clear Creek County, Colorado, United States of America, North America
Giant red paintbrush (scarlet paintbrush) (Indian paintbrush) (Castilleja miniata), San Juan National Forest, Colorado, United States of America, North America
Fall Colors, of Road 7, Sneffle Range in the background, near Ouray, Colorado, United States of America, North America
Swift Fox (Vulpes velox) vixen and kit, Pawnee National Grassland, Colorado, United States of America, North America
Aspen pines and snowy peaks,San Juan Skyway, Colorado, USA
Orange clouds at dawn above Longs Peak, Rocky Mountain National Park, Colorado, United States of America, North America
Bald eagle (Haliaeetus leucocephalus) perched with spread wings, Boulder County, Colorado, United States of America, North America
North American elk (Cervus Elaphus) and sand dunes, Great Sand Dunes National Park and Preserve, Sangre Cristo Mountains in background, Colorado, United States of America, North America
Mesa Verde National Park, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Mountain goat (Oreamnos americanus), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Thirteen-lined ground squirrel (Citellus tridecemlineatus) feeding, Pawnee National Grassland, Colorado, United States of America, North America
Loggerhead shrike (Lanius ludovicianus), Pawnee National Grassland, Colorado, United States of America, North America
Two bighorn sheep (Ovis canadensis) rams butting heads during the rut, Clear Creek County, Colorado, United States of America, North America
American Pika (Ochotona princeps), San Juan National Forest, Colorado, United States of America, North America
Blue columbine (Colorado columbine) (Aquilegia coerulea) in an Alpine basin, San Juan National Forest, Colorado, United States of America, North America
American pika (Ochotona princeps) with food in its mouth, San Juan National Forest, Colorado, United States of America, North America
Horseshoe Bend in the Colorado River, Arizona, United States of America, North America
Colorado River, Canyonlands National Park, Utah, United States of America, North America
White-tailed ptarmigan (Lagopus leucurus) in summer plumage, San Juan National Forest, Colorado, United States of America, North America
Swift Fox (Vulpes velox) kit pouncing, Pawnee National Grassland, Colorado, United States of America, North America
Wolcott Mountain in the fall with yellow and bare aspen, Uncompahgre National Forest, Colorado, United States of America, North America
Casa Colorado, Mayan ruins, Chichen Itza, UNESCO World Heritage Site, Yucatan, Mexico, North America
Mesa Verde National Park, Fire Temple, UNESCO World Heritage Site, Colorado, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Kite Lake, Rio Grande National Forest, Colorado, United States of America, North America
Two mountain goat (Oreamnos americanus) kids playing, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) calling, San Juan National Forest, Colorado, United States of America, North America
Maroon Lake and Maroon Bells Peaks in the background, Maroon Bells Scenic Area, Colorado, United States of America, North America
Gunnison River deep in the canyon from Kneeling Camel View Point, Black Canyon of the Gunnison National Park, Colorado, United States of America, North America
Tambo Colorado Inca Ruins near Pisco City, Ica Region, Peru, South America
Mesa Verde National Park, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Lone tourist on Old Navajo Bridge over Marble Canyon and Colorado River, near Lees Ferry, Arizona, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) among wildflowers, San Juan National Forest, Colorado, United States of America, North America
Watch Tower, Colorado River below, Desert View Point, South Rim, Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Lizard Head and yellow aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Swift Fox (Vulpes velox) kit, Pawnee National Grassland, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris), San Juan National Forest, Colorado, United States of America, North America
Least chipmunk (Tamias minimus) (Neotamias minimus) (Eutamias minimus), San Juan National Forest, Colorado, United States of America, North America
Petroglyphs, Colorado River basin, 6000 BC to 1300 AD, Utah, United States of America, North America
Tambo Colorado Inca Ruins near Pisco City, Ica Region, Peru, South America
Cascades on the partially frozen San Miguel River, San Miguel County, Colorado, United States of America, North America
Looking down onto the inner canyon and Colorado River from Mohave Point as it flows through the Grand Canyon National Park, UNESCO World Heritage Site, Arizona, United States of America, North America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Colorado chipmunk (Eutamias quadrivittatus), San Juan National Forest, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Alpine meadow with orange sneezeweed (Hymenoxys hoopesii) (Dugaldia hoopesii) (Helenium hoopesii) and other wildflowers, San Juan National Forest, Colorado, United States of America, North America
Wilson Peak in the fall, San Juan National Forest, Colorado, USA
Wilson Peak at dawn in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Main Avenue, Durango, Colorado, United States of America, North America
Male mountain bluebird (Sialia currucoides), Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
American pika (Ochotona princeps), San Juan National Forest, Colorado, United States of America, North America
White-tailed ptarmigan (Lagopus leucurus) in summer plumage, San Juan National Forest, Colorado, United States of America, North America
Thirteen-lined ground Squirrel (Citellus tridecemlineatus) feeding, Pawnee National Grassland, Colorado, United States of America, North America
White-tailed ptarmigan (Lagopus leucurus) chick, San Juan National Forest, Colorado, United States of America, North America
Swift fox (Vulpes velox) kit, Pawnee National Grassland, Colorado, United States of America, North America
American pika (Ochotona princeps) among yellow wildflowers, San Juan National Forest, Colorado, United States of America, North America
Colorado River, Canyonlands National Park, Utah, United States of America, North America
Wilson Peak with a dusting of snow in the fall, San Juan National Forest, Colorado, United States of America, North America
Horseshoe Bend on the Colorado River, Page, Arizona, United States of America, North America
Colorado side-blotched lizard (Uta stansburiana uniformis), Canyon Country, Utah, United States of America, North America
Hiker at Great Sand Dunes National Park, Colorado, United States of America, North America
Silverton, Colorado, United States of America, North America