A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434464/wild-mustang-horsesFree Image from public domain licenseAutumnal view of Rocky Mountain peaks called the Maroon Bells, between Pitkin County and Gunnison County, Colorado. Original… https://www.rawpixel.com/image/422056/rocky-mountain-peaksFree Image from public domain licenseA portion of Great Sand Dunes National Monument and Preserve. Original image from Carol M. Highsmith’s America… https://www.rawpixel.com/image/434577/pink-sand-dunesFree Image from public domain licenseSummer storms over the Grand Canyon https://www.rawpixel.com/image/427017/grand-canyon-landscapeView licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434466/wild-mustang-horsesFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434465/wild-mustang-horsesFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434456/wild-mustang-horsesFree Image from public domain licenseA blurry background image that perfectly captures swirling stars in a night sky over Lake Powell. Original public domain… https://www.rawpixel.com/image/3285442/free-photo-image-space-desert-mountainFree Image from public domain license"Flat Tops" -- a range of the Rocky Mountains Colorado - Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/434639/the-rocky-mountains-coloradoFree Image from public domain licenseAn icy map of the Colorado River and its tributaries. Original public domain image from Flickr https://www.rawpixel.com/image/4033224/photo-image-texture-nature-iceFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434341/free-photo-image-horse-winter-carol-highsmithFree Image from public domain licenseSummer storms at Grand Canyon National Park, United States https://www.rawpixel.com/image/427013/free-photo-image-sunset-landscape-grand-canyonView licenseBaja California, Colorado river and Sonora Desert. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441734/free-photo-image-nasa-water-riverFree Image from public domain licenseSunrise at Mesa Arch in Canyonlands National Park, North America https://www.rawpixel.com/image/426930/free-photo-image-desert-sunset-sunriseView licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434455/free-photo-image-horse-carol-highsmith-winterFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434444/free-photo-image-horse-snake-snowFree Image from public domain licenseAlpine lake above the Crystal River Valley town of Marble, Colorado - Original image from Carol M. Highsmith’s… https://www.rawpixel.com/image/434644/free-photo-image-landscape-lake-riverFree Image from public domain licenseAt Horseshoe Bend on the Colorado River in Arizona. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/421810/horseshoe-bendFree Image from public domain licenseAmerican egret roosting on tree in Colorado River Indian Reservation, south of Parker. Original public domain image from… https://www.rawpixel.com/image/8799490/photo-image-public-domain-bird-animalFree Image from public domain licenseCowboys and their dog ford the North Platte River on the Park Range Ranch, near the Wyoming border in Jackson County's… https://www.rawpixel.com/image/582502/carol-highsmiths-colorado-photographFree Image from public domain licenseAmerican egrets roosting on a tree in Colorado River Indian Reservation, south of Parker. Original public domain image from… https://www.rawpixel.com/image/8799670/photo-image-texture-art-public-domainFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, a vast cattle and sheep-ranching… https://www.rawpixel.com/image/582480/carol-highsmiths-colorado-photographFree Image from public domain licenseA mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… https://www.rawpixel.com/image/434468/free-photo-image-horse-snow-herdFree Image from public domain licenseHorseshoe Bend in Arizona, United States https://www.rawpixel.com/image/427010/free-photo-image-national-parks-rock-landscapeView licenseFootprints at Great Sand Dunes National Monument and Preserve, one of America's newest national parks to be established (in… https://www.rawpixel.com/image/582548/carol-highsmiths-colorado-photographFree Image from public domain licenseView from a bend in the Colorado River of Glen Canyon Dam, outside Page, Arizona. Original image from Carol M.… https://www.rawpixel.com/image/582318/carol-highsmiths-arizona-photographFree Image from public domain licensePanorama of the Horseshoe Bend, United States https://www.rawpixel.com/image/426928/free-photo-image-zion-national-park-parks-american-desertView licenseColorado River, near Parshall, Colorado - Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434409/free-photo-image-river-america-landscape-sceneryFree Image from public domain licenseAlpine lake above the Crystal River Valley town of Marble, Colorado - Original image from Carol M. Highsmith’s… https://www.rawpixel.com/image/434401/free-photo-image-colorado-carol-highsmithFree Image from public domain licenseCowhands and horses cross the North Platte River at Park Range Ranch in North Park, Colorado. Original image from Carol M.… https://www.rawpixel.com/image/3091008/free-photo-image-horse-riding-usa-countryside-americaFree Image from public domain licenseRafters on Clear Creek, outside Idaho Falls, Colorado - Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/434643/free-photo-image-rafting-forest-kayakFree Image from public domain licenseDeadhorse Point State Park with View of the Colorado River Gorge, 05/1972. Original public domain image from Flickr https://www.rawpixel.com/image/8799460/photo-image-art-public-domain-mountainFree Image from public domain licenseHighway through desert near Colorado River. Road is constructed in a series of dips as a protection against flash flooding… https://www.rawpixel.com/image/8799349/photo-image-public-domain-nature-travelFree Image from public domain licenseAlpine lake above the Crystal River Valley town of Marble, Colorado - Original image from Carol M. Highsmith’s… https://www.rawpixel.com/image/434405/free-photo-image-colorado-carol-tourismFree Image from public domain licenseScene at Snowmass, a skiing and snowboarding area Pitkin County, Colorado, in the valley of the Roaring Fork River between… https://www.rawpixel.com/image/582486/carol-highsmiths-colorado-photographFree Image from public domain licenseFast moving and impulsive late-summer storms in Grand Canyon Village, United States https://www.rawpixel.com/image/427018/free-photo-image-canyon-fog-arizonaView licenseClose-Up Photograph of Boulder Dam. Photographer: Adams, Ansel, 1902-1984. Original public domain image from Flickr https://www.rawpixel.com/image/8799503/photo-image-vintage-public-domain-waterFree Image from public domain licenseCowhand John Guthrie III and his horse, Gunner, near one of several streams on the Park Range Ranch in Colorado's North… https://www.rawpixel.com/image/582731/carol-highsmiths-wyoming-photographFree Image from public domain licenseA Georgetown Loop Railroad scenic train crosses a high trestle near the Rocky Mountain town of Georgetown. Original image… https://www.rawpixel.com/image/582554/carol-highsmiths-colorado-photographFree Image from public domain licenseView of Meridian Lake and Mount Crested Butte above the Colorado city of Crested Butte on the high, dirt Washington Gulch… https://www.rawpixel.com/image/582501/carol-highsmiths-colorado-photographFree Image from public domain licenseInteresting clouds over Inks Lake, an inlet of the Colorado River in Burnet County, Texas. Original image from Carol M.… https://www.rawpixel.com/image/434252/free-photo-image-river-vacation-americaFree Image from public domain licenseSunrise at the Grand Canyon in Arizona, United States https://www.rawpixel.com/image/427019/free-photo-image-grand-canyon-national-park-wild-westView licensePennybacker Bridge in Austin, Texas, United States https://www.rawpixel.com/image/426920/free-photo-image-infrastructure-austin-hill-countryView licenseAmerican egrets roosting and nesting on the Colorado River Indian Reservation near Parker. Original public domain image from… https://www.rawpixel.com/image/8799712/photo-image-public-domain-bird-flamingoFree Image from public domain licenseColorado River boat dock near Hoover Dam, May 1972. Photographer: O'Rear, Charles. Original public domain image from Flickr https://www.rawpixel.com/image/8799375/photo-image-paper-vintage-bookFree Image from public domain licenseA cowboy and his dog cross the snowy Ladder Livestock ranch, a vast cattle and sheep-ranching operation that straddles the… https://www.rawpixel.com/image/3090965/free-photo-image-cowboy-america-animalFree Image from public domain licenseCamp Hale Pond, near the headwaters of the Eagle River in Eagle County, Colorado's Upper Eagle River Canyon. Original image… https://www.rawpixel.com/image/582491/carol-highsmiths-colorado-photographFree Image from public domain licenseRifle, the Major Town of the Piceance Basin Is Located on the Colorado River. the Town Stands at the Junction of Us 6 (I-70)… https://www.rawpixel.com/image/8799559/photo-image-smoke-light-skyFree Image from public domain licensePerformer at annual junior rodeo held on Colorado River Indian Reservation at Parker, May 1972. Photographer: O'Rear… https://www.rawpixel.com/image/8765522/photo-image-vintage-public-domain-kidFree Image from public domain licenseView from Powell's Plateau, Grand Canyon, Colorado by Thomas Moran, American, b. Britain, 1837–1926 https://www.rawpixel.com/image/9065792/image-art-watercolor-vintageFree Image from public domain licenseFrisco, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300328/free-photo-image-abies-aerial-view-architectureFree Image from public domain licenseColorado's Dolores River Valley in autumn - Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/433939/free-photo-image-scenic-forest-landscape-autumnFree Image from public domain licenseLady bird lake Austin, Texas, United States https://www.rawpixel.com/image/426951/free-photo-image-austin-colorado-texasView licenseSunset at Topock Marsh, formed by Colorado River, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799668/photo-image-light-sunset-skyFree Image from public domain licenseView of snowy trees and road next to open water in Silverthorne, Colorado. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3291904/free-photo-image-abies-aerial-viewFree Image from public domain licenseThe 1892 powerhouse above the Crystal River in what is now the virtual ghost town (except for a handful of summer-only… https://www.rawpixel.com/image/582534/carol-highsmiths-colorado-photographFree Image from public domain licenseAerial view of a portion the water and surroundings of Lake Mead, created by the construction of nearby Hoover Dam, which… https://www.rawpixel.com/image/582448/carol-highsmiths-arizona-photographFree Image from public domain licenseAbove Hoover Dam near Boulder City, Nevada. Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/421829/free-photo-image-colorado-hydroelectric-damFree Image from public domain licenseMt. Wilson and West Dolores River, 05/1972. Photographer: Norton, Boyd. Original public domain image from Flickr https://www.rawpixel.com/image/8803011/photo-image-clouds-plant-skyFree Image from public domain licenseColorado River-- from a helicopter over needles, May 1972, Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799819/photo-image-vintage-space-planetFree Image from public domain licenseSmiling participant in the "junior rodeo", sponsored by the Parker Indian Rodeo Association and held on the Colorado River… https://www.rawpixel.com/image/8765872/photo-image-vintage-kid-portraitFree Image from public domain licenseA train exits the winding Glenwood Canyon on the Colorado River, heading east from Glenwood Springs, Colorado. Original… https://www.rawpixel.com/image/582527/carol-highsmiths-colorado-photographFree Image from public domain licenseNorth Clear Creek Falls, in Hinsdale County along the Colorado mountain road called the Silver Thread Byway, drops from an… https://www.rawpixel.com/image/582482/carol-highsmiths-colorado-photographFree Image from public domain licenseWilderness landscape mountain outdoors. https://www.rawpixel.com/image/12079831/photo-image-cloud-sunset-plantView licenseSouth fork of Rio Grande River near Wolf Creek Pass, 05/1972. Photographer: Norton, Boyd. Original public domain image from… https://www.rawpixel.com/image/8802878/photo-image-ocean-nature-waterFree Image from public domain licenseEast Dallas Creek, 05/1972. Photographer: Norton, Boyd. Original public domain image from Flickr https://www.rawpixel.com/image/8799829/photo-image-public-domain-mountain-oceanFree Image from public domain licenseEast Dallas Creek, 05/1972. Photographer: Norton, Boyd. Original public domain image from Flickr https://www.rawpixel.com/image/8799828/photo-image-plant-tree-public-domainFree Image from public domain licenseEast Dallas Creek, 05/1972. Original public domain image from Flickr https://www.rawpixel.com/image/8799898/photo-image-public-domain-mountain-natureFree Image from public domain licensePointing to homes in the Colorado River area, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799641/photo-image-public-domain-posterFree Image from public domain licenseEPA's helicopter surveying the Colorado River, May 1972. Photographer: O'Rear, Charles. Original public domain image from… https://www.rawpixel.com/image/8799817/photo-image-public-domain-personFree Image from public domain licenseMaiden Voyage of the Stern - Wheeler "Canyon King," Larger and More Comfortable Than Any Craft Previously Available, and… https://www.rawpixel.com/image/8770219/photo-image-person-hat-humanFree Image from public domain licenseBlack Canyon, Colorado River, Looking Above from Mirror Bar. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651413/photo-image-vintage-art-public-domainFree Image from public domain licenseA dim shot of a horseshoe-shaped river bend in a canyon under a stormy sky. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3288330/free-photo-image-aerial-view-arizona-buildingFree Image from public domain licenseA small waterfall tumbling down jagged rocks. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300039/free-photo-image-abies-alberta-falls-buildingFree Image from public domain licenseSunset view of the Regency Bridge in San Saba County, Texas, USA https://www.rawpixel.com/image/595065/regency-bridgeView licenseSunset view of the Regency Bridge in San Saba County, Texas, USA https://www.rawpixel.com/image/595069/regency-bridgeView licenseSunset over the Pennybacker Bridge in Austin Texas crossing the Colorado River, USA https://www.rawpixel.com/image/595067/pennybacker-bridgeView licenseA portion of the "Grand Ditch," a stretch of the Colorado River, just ten miles from its headwaters in Rocky Mountain… https://www.rawpixel.com/image/582542/carol-highsmiths-colorado-photographFree Image from public domain licenseCañon of the Colorado River, near Mouth of San Juan River, Arizona by Timothy O'Sullivan https://www.rawpixel.com/image/9050259/photo-image-sky-mountain-natureFree Image from public domain license