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Tambo Colorado Inca Ruins near Pisco City, Ica Region, Peru, South America
Mesa Verde National Park, Spruce Tree House, UNESCO World Heritage Site, Colorado, United States of America, North America
Bull moose (Alces alces) in velvet, Roosevelt National Forest, 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
Dawn near Stony Pass, Rio Grande National Forest; Colorado, United States of America, North America
American pika (Ochotona princeps), San Juan National Forest, Colorado, United States of America, North America
Roseroot (king's crown) (Sedum rosea), Gunnison National Forest, Colorado, United States of America, North America
Rosy paintbrush (split-leaf Indian paintbrush) (splitleaf Indian paintbrush) (Castilleja rhexifolia), San Juan National Forest, Colorado, United States of America, North America
Barn on ranch near Leadville, Colorado, United States of America, North America
Swift fox (Vulpes velox) kit, 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
Crystal Mill with aspens in fall colors, Crystal, Colorado, United States of America, North America
Female lark bunting (Calamospiza melanocorys), Pawnee National Grassland, Colorado, United States of America, North America
Mountain Goat (Oreamnos americanus), Mount Evans, Colorado, United States of America, North America
Mears Peak and the Sneffels Range in the winter, Uncompahgre National Forest, Colorado, United States of America, North America
Sand dunes, Great Sand Dunes National Park and Preserve, with Sangre Cristo Mountains in the 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, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Evergreen among yellow and green aspens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Colorado chipmunk (Eutamias quadrivittatus) eating, San Juan National Forest, Colorado, United States of America, North America
Waterfall, San Juan National Forest, Colorado, United States of America, North America
Fireweed (Chamerion angustifolium), San Juan National Forest, Colorado, United States of America, North America
Two bighorn sheep (Ovis canadensis) rams during the rut, Clear Creek County, Colorado, United States of America, North America
Hazleton Mountain in the winter, San Juan Mountains, 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
American pika (Ochotona princeps) among yellow wildflowers, San Juan National Forest, Colorado, United States of America, North America
Yellow-bellied marmot (yellowbelly marmot) (Marmota flaviventris) among bistort, San Juan National Forest, Colorado, United States of America, North America
Black Canyon of the Gunnison National Park, Gunnison River deep in the canyon, Colorado, United States of America, North America
Mount Sneffels at first light with a dusting of snow in the fall, Uncompahgre National Forest, 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, Cliff Palace, UNESCO World Heritage Site, Colorado, United States of America, North America
Couple hiking below Mount Baker, Rocky Mountain National Park, Colorado, United States of America, North America
Tent illuminated under the night sky, Rocky Mountain National Park, Colorado, United States of America, North America
Tent illuminated under the night sky, Rocky Mountain National Park, Colorado, United States of America, North America
Larimer Square, Denver, Colorado, United States of America, North America
Alpine meadow with wildflowers, San Juan 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
Sunset over an Alpine tarn at Stoney Pass, San Juan National Forest, Colorado, United States of America, North America
Mountain goat (Oreamnos americanus) nanny and kid, 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
Mount Wilson in the winter, Uncompahgre 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
Summer wildflowers in Colorado's San Juan mountains, Colorado, United States of America, North America
Steller's jay (Cyanocitta stelleri), Rocky Mountain National Park, Colorado, United States of America, North America
Durango & Silverton Train, Colorado, United States of America, North America
Two bull moose (Alces alces) facing off before play fighting, Roosevelt National Forest, Colorado, United States of America, North America
Wilson Peak in the winter, Uncompahgre National Forest, Colorado, United States of America, North America
Wilson Peak at dawn with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Summit of Longs Peak, a mountain above 14000 feet, known as a 14er, Rocky Mountain National Park, Colorado, United States of America, North America
Silverton, Colorado, United States of America, North America
Jagged ridge with puffy clouds, Rio Grande National Forest, Colorado, United States of America, North America
Cascades in Minnie Gulch, San Juan National Forest, Colorado, United States of America, North America
San Juan Mountains from Black Bear Pass Road, San Juan National Forest, Colorado, United States of America, North America
Mountain goat (Oreamnos americanus) nanny and kids, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Alpine waterfall with wildflowers at sunset, San Juan National Forest, Colorado, United States of America, North America
Waterfall, San Juan National Forest, Colorado, United States of America, North America
Cloud over the Sneffels Range in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
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
Yellow aspens among evergreens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Mount Sneffels with snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Aspen trunks among yellow leaves, Uncompahgre National Forest, Colorado, United States of America, North America
Yellow aspen leaves on a lichen-covered rock in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Orange aspens in the fall, San Juan National Forest, Colorado, United States of America, North America
Closing Era statue, State Capitol Building, Denver, Colorado, United States of America, North America
Denver Art Museum, Civic Center Cultural Complex, Denver, Colorado, United States of America, North America
Rafting down the Colorado River, Grand Canyon, Arizona, United States of America, North America
One sided penstemon (sidebells penstemon) (Penstemon secundiflorus), San Juan National Forest, Colorado, United States of America, North America
Cascades in Minnie Gulch, San Juan National Forest, Colorado, United States of America, North America
Columbian ground squirrel (Citellus columbianus) feeding, Glacier National Park, Montana, 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
Sunrise in an Alpine meadow with wildflowers, San Juan National Forest, Colorado, United States of America, North America
Western kingbird (Tyrannus verticalis), Pawnee National Grassland, Colorado, United States of America, North America
Snow pillows on the Dolores River, San Juan National Forest, Colorado, United States of America, North America
Yellow and orange aspens with evergreens in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Fall colours, Telluride, Western San Juan Mountains in the background, Colorado, United States of America, North America
Yellow aspen trees in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
White-tailed Ptarmigan (Lagopus leucurus) among wildflowers, Mineral Basin, San Juan National Forest, Colorado, United States of America, North America
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
Hiker 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
Aspen leaf turning red, orange, and yellow, Uncompahgre National Forest, Colorado, United States of America, North America
Patches of yellow aspens in the fall under pink clouds, Uncompahgre National Forest, Colorado, United States of America, North America
Mount Sneffels with a dusting of snow in the fall, Uncompahgre National Forest, Colorado, United States of America, North America
Great Sand Dunes and mountains with snow, Great Sand Dunes National Park and Preserve, Colorado, United States of America, North America
Butter-and-eggs (common toadflax) (yellow toadflax) (Linaria vulgaris), San Juan National Forest, Colorado, United States of America, North America
Star gentian (felwort) (Swertia perennis), San Juan National Forest, Colorado, United States of America, North America
Waterfall on Clear Creek, 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
Parry's primrose (Primula parryi), 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
Mountain goat (Oreamnos americanus) nanny, Mount Evans, Arapaho-Roosevelt National Forest, Colorado, United States of America, North America
Bighorn sheep (Ovis canadensis) ram durng the rut, Clear Creek County, Colorado, United States of America, North America
Lizard Head in the winter, Uncompahgre National Forest, Colorado, United States of America, North America
Sneffels Range with aspens in 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
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
Frozen San Miguel River, San Miguel County, Colorado, United States of America, North America
Cascades on the Big Bear Creek in the fall, San Miguel County, Colorado, United States of America, North America
Green-winged teal (Anas crecca) hen swimming, Pike and San Isabel National Forest, Colorado, United States of America, North America
Yellow aspen trees reflected in Priest Lake in the fall, San Juan National Forest, Colorado, United States of America, North America
Great Sand Dunes and mountains with snow, Great Sand Dunes National Park and Preserve, Colorado, United States of America, North America