Vacationers on motorcycles, 05/1972. Photographer: Norton, Boyd. Original public domain image from Flickr https://www.rawpixel.com/image/8765661/photo-image-vintage-mountain-travelFree Image from public domain license
A woman wearing a fur hood jacket on a mountain in Lake City. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3284398/free-photo-image-adventure-adventurer-backFree Image from public domain license
Person sitting on cliff, Grand Canyon, Arizona, free public domain travel CC0 photo. https://www.rawpixel.com/image/5927869/photo-image-public-domain-person-mountainFree Image from public domain license
People on one of the rides on amusement row at the Labor Day celebration, Silverton, Colorado by Russell Lee https://www.rawpixel.com/image/12109238/image-person-art-skyFree Image from public domain license
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Rafters 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 license
Climber at the Ouray Ice Park, a human-made ice climbing venue in a natural gorge within walking distance of the city of… https://www.rawpixel.com/image/582460/carol-highsmiths-colorado-photographFree Image from public domain license
Sled dogs race through the Rocky Mountain backcountry near the ski resort of Snowmass Village, Colorado. https://www.rawpixel.com/image/582504/carol-highsmiths-colorado-photographFree Image from public domain license
Dinosaur National Monument Monarch Survey. A well deserved rest for the boatsmen. NPS Photo/M.Reed. Original public domain… https://www.rawpixel.com/image/4036990/photo-image-people-nature-mountainFree Image from public domain license
East 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 license
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Vail Legacy Days and Winter Warfare TrainingSoldiers from the 10th Mountain Division's 2-87 IN, 2-14 IN, and Division staff… https://www.rawpixel.com/image/9647920/photo-image-person-cross-mountainFree Image from public domain license
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Sunrise at Mesa Arch in Canyonlands National Park, North America https://www.rawpixel.com/image/426930/free-photo-image-desert-sunset-sunriseView license
View of the snow-capped mountains surrounding Telluride, a historic Colorado mining town turned ski resort. Original image… https://www.rawpixel.com/image/582471/carol-highsmiths-colorado-photographFree Image from public domain license
Vail Legacy Days and Winter Warfare TrainingSoldiers from the 10th Mountain Division's 2-87 IN, 2-14 IN, and Division staff… https://www.rawpixel.com/image/9652169/photo-image-person-mountain-crossFree Image from public domain license
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Aerial tram leading from mine to mill. Topography is such that this is the most efficient means of transporting ore over the… https://www.rawpixel.com/image/12108818/image-cloud-plant-artFree Image from public domain license
U.S. Department of Agriculture (USDA) Forest Service (FS) Arapaho and Roosevelt National Forests, Arapaho National Forest… https://www.rawpixel.com/image/3390909/free-photo-image-abies-adventure-arapahoFree Image from public domain license
Bison field herd grassland. AI generated Image by rawpixel. https://www.rawpixel.com/image/12495916/bison-field-herd-grassland-generated-image-rawpixelView license
Hiking by the Emerald Lake in The Rocky Mountain National Park, United States https://www.rawpixel.com/image/426955/free-photo-image-winter-hike-climb-mountain-coloradoView license
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Balanced Rock, Garden of the Gods, Colorado by William Henry Jackson https://www.rawpixel.com/image/14253951/balanced-rock-garden-the-gods-colorado-william-henry-jacksonFree Image from public domain license
Group of friends in the snow. https://www.rawpixel.com/image/76499/premium-photo-image-adventure-asian-aspen-coloradoView license
Vail Legacy Days and Winter Warfare TrainingSoldiers from the 10th Mountain Division's 2-87 IN, 2-14 IN, and Division staff… https://www.rawpixel.com/image/9652087/photo-image-person-mountain-crossFree Image from public domain license
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Goose Creek Fire. Even when not actively engaged in firefighting this helicopter crew must practice their skills to maintain… https://www.rawpixel.com/image/8742272/photo-image-fire-public-domain-personFree Image from public domain license
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Gold King Mine - August 14, 2015A kayaker paddles the Animas River minutes after the La Plata County Sheriff lifted the ban… https://www.rawpixel.com/image/4046427/photo-image-person-bird-natureFree Image from public domain license
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Crystal Mill, one of the most-photographed (though most difficult to reach) historic sites in Colorado. https://www.rawpixel.com/image/582532/carol-highsmiths-colorado-photographFree Image from public domain license
Cabins laden with heavy snow outside Telluride in San Miguel County, Colorado. Original image from Carol M.… https://www.rawpixel.com/image/582523/carol-highsmiths-colorado-photographFree Image from public domain license
Climber at the Ouray Ice Park, a human-made ice climbing venue in a natural gorge within walking distance of the city of… https://www.rawpixel.com/image/582493/carol-highsmiths-colorado-photographFree Image from public domain license
Travel by Train. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293224/free-photo-image-amtrak-adventure-amusement-parkFree Image from public domain license
Colorado National Monument, Fruita, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3290370/free-photo-image-adventure-canyon-cc0Free Image from public domain license
Aerial view of some of the standout red-rock formations at the Garden of the Gods, a municipally owned and free park in… https://www.rawpixel.com/image/582474/carol-highsmiths-colorado-photographFree Image from public domain license
A horse-drawn sleigh carries passengers through the snow-covered fields at the Frisco Adventure Park, a year-round… https://www.rawpixel.com/image/582529/carol-highsmiths-colorado-photographFree Image from public domain license
South 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 license
Colorado, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3293316/free-photo-image-adventure-apparel-beanieFree Image from public domain license
Grand Canyon of the Colorado River by William Henry Jackson https://www.rawpixel.com/image/14275554/grand-canyon-the-colorado-river-william-henry-jacksonFree Image from public domain license
Aerial view of some of the standout red-rock formations at the Garden of the Gods, a municipally owned and free park in… https://www.rawpixel.com/image/582481/carol-highsmiths-colorado-photographFree Image from public domain license
Ore being brought down from the gold mine by truck, Telluride, Colorado by Russell Lee https://www.rawpixel.com/image/12144734/image-plant-person-artFree Image from public domain license
Forest trees form a circle against the snowy ground. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3290738/free-photo-image-abies-adventure-aerial-viewFree Image from public domain license
Goose Creek Fire. A Chinook helicopter dumps its bucket load over the Goose Creek Fire. Photo by Andy Lyon. Original public… https://www.rawpixel.com/image/8754218/photo-image-leaf-public-domain-birdFree Image from public domain license
Road across Loveland Pass near Dillon, Colorado. Sourced from the Library of Congress. https://www.rawpixel.com/image/12334847/image-plant-sky-forestFree Image from public domain license
Peach pickers with sackful of peaches, Delta County, Colorado. These are local boys by Russell Lee https://www.rawpixel.com/image/12144792/image-face-plant-personFree Image from public domain license
A U.S. Army CH-47 Chinook helicopter with the 2nd General Support Aviation Battalion, 4th Aviation Regiment, 4th Combat… https://www.rawpixel.com/image/8727982/photo-image-smoke-public-domain-birdFree Image from public domain license
May 14, 2018 - Surfers beach on Kodiak Island, Alaska. Original public domain image from Flickr https://www.rawpixel.com/image/3322558/free-photo-image-adventure-alaskan-village-beachFree Image from public domain license
U.S. Air Force Capt. Nicholas Eberling, the lead solo pilot of the Thunderbirds, lands at Peterson Air Force Base, Colo.… https://www.rawpixel.com/image/8739413/photo-image-airplane-public-domain-personFree Image from public domain license
U.S. Army Sgt. 1st Class Kevin Buckner, a search and extraction assistant team leader with the Chemical, Biological… https://www.rawpixel.com/image/3319063/free-photo-image-adventure-alloy-wheel-apparelFree Image from public domain license
[Untitled photo, possibly related to: Unloading gravel to be used in mine building construction, Ouray County, Colorado] by… https://www.rawpixel.com/image/12171910/image-plant-art-vintageFree Image from public domain license
A helicopter bucket is used by a U.S. Army CH-47 Chinook helicopter crew assigned to the 2nd Battalion, 135th Aviation… https://www.rawpixel.com/image/3318423/free-photo-image-adventure-algae-animalFree Image from public domain license
Unloading gravel to be used in mine building construction, Ouray County, Colorado by Russell Lee https://www.rawpixel.com/image/12171683/image-plant-art-vintageFree Image from public domain license
[Untitled photo, possibly related to: Aerial tramway leaving from mine in distance to the mill. Because of the… https://www.rawpixel.com/image/12149109/image-plant-art-skyFree Image from public domain license