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Sunset behind Mirror Lake, Gunnison National Forest, Colorado, United States of America, North America

Common snipe (Gallinago gallinago), Arapaho National Wildlife Refuge, Colorado, United States of America, North America

Snow-covered mountains in the spring from Trail Ridge Road, Rocky Mountain National Park, Colorado, United States of America, North America

The Needles in Chesler Park, Canyonlands National Park, Utah, United States of America, North America

Sculptured rock formations, Devil's Garden, Grand Staircase Escalante, Utah, United States of America, North America

Rock face and waterfalls, Emerald Pools, Zion National Park, Utah, United States of America, North America

Site of massacre, including where Custer fell, Little Big Horn, Montana, United States of America, North America

Sand dunes with grasses and ridges in foreground, Great Sand Dunes National Park, Colorado, United States of America, North America

Sand dunes at dawn, Great Sand Dunes National Park, Colorado, United States of America, North America

Site of massacre, including where Custer fell, Little Big Horn, Montana, United States of America, North America

North Clear Creek Falls, Rio Grande National Forest, Colorado, United States of America, North America

Golden-mantled squirrel (Citellus lateralis), Rocky Mountain National Park, Colorado, United States of America, North America

Bull elk (Cervus canadensis) bugling, Rocky Mountain National Park, Colorado, United States of America, North America

Cascades, American Basin, Uncompahgre National Forest, Colorado, United States of America, North America

Grizzly bear (Ursus horribilis), Glacier National Park, Montana, United States of America, North America

Sipapu Natural Bridge, Natural Bridges National Monument, Utah, United States of America, North America

Sand dunes at dusk, Great Sand Dunes National Park, Colorado, United States of America, North America

Rock formations, Needles District, Canyonlands National Park, Utah, United States of America, North America

Fredrick Remingtons "Bronco Buster" on Barney Allis plaza, Kansas City, Missouri, United States of America, North America

J.C. Nichols Fountain, Country Club Plaza, Kansas City, Missouri, United States of America, North America

Grass topped cliffs along the north west coast between the settlement of Edinburgh and potato patches, on Tristan da Cunha, Mid Atlantic

Open pit mine, the largest in the world, pit is 3800m across and 720m deep, Bingham Canyon Copper Mine, Utah, USA

Yellow flowering plants and loop road seen from Inferno cone, Craters of the Moon National Monument, Idaho, United States of America (U.S.A.), North America

Ouray County Courthouse dating from 1888 on 4th Street and 6th Avenue, built during the mining boom period, includes offices, courtroom, sheriff's quarters, jail and a county art collection, Ouray, Colorado, United States of America (U.S.A.), North America

Glen Canyon Dam, concrete arch 180m high, 475m long, retaining Lake Powell on the Colorado River, Arizona, United States of America, North America

Indian petroglyphs drawn on red standstone by scratching away dark desert varnish of iron oxides, Newspaper Rock, Canyonlands, Utah, United States of America, North America

Cliff Palace, Mesa Verde National Park, UNESCO World Heritage Site, Colorado, United States of America, North America

St. Mary Lake and Wild Goose Island, Glacier National Park, Rocky Mountains, Montana, United States of America (USA), North America

Erosion prevention, contoured bands of trees unfelled, also acting as fire break, Leadville, Colorado, United States of America, North America

View east from Logan Pass, Glacier National Park, Montana, United States of America (U.S.A.), North America

Galena summit view with sign, Sawtooth National Recreation Area, Idaho, United States of America (U.S.A.), North America

Dawn breaking over Georgetown Lake at Southern Cross, Rocky Mountains, west Montana, Montana, United States of America (USA), North America

Hoodoos, Bryce amphitheater, Bryce Canyon National Park, Utah, United States of America (U.S.A.), North America