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 licenseA bighorn sheep in Colorado National Monument, a preserve of vast plateaus, canyons, and towering monoliths in Mesa County… https://www.rawpixel.com/image/433758/bighorn-sheep-the-roadFree 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 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 licenseColorado River, Mouth of Kanab Wash, Looking West by William H. Bell https://www.rawpixel.com/image/9013001/colorado-river-mouth-kanab-wash-looking-west-william-bellFree Image from public domain licenseA slow shutter shot of a curved road in Boulder, with fast-driving car light trails. Original public domain image from… https://www.rawpixel.com/image/3286323/free-photo-image-universe-car-boulderFree Image from public domain licenseWinding country road under a blue starry night sky in Colorado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3285252/free-photo-image-stars-horizon-black-landscape-starry-skyFree Image from public domain licenseA country road with mountains in the distance under a starry night in Colorado.. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3282212/free-photo-image-outer-space-night-sky-twilightFree Image from public domain licenseColorado--Uncompahgre National Forest, 05/1972. Photographer: Norton, Boyd. Original public domain image from Flickr https://www.rawpixel.com/image/8799855/photo-image-face-plant-treeFree Image from public domain licenseCheckerboard fields of California's Imperial Valley are fed by Colorado River, May 1972. Photographer: O'Rear, Charles.… https://www.rawpixel.com/image/8799822/photo-image-public-domain-nature-landscapeFree Image from public domain licenseSign along the Colorado River--misspelled but clear, May 1972. Photographer: O'Rear, Charles. Original public domain image… https://www.rawpixel.com/image/8799698/photo-image-public-domain-textFree Image from public domain licenseCity sky architecture metropolis. AI generated Image by rawpixel. https://www.rawpixel.com/image/12586922/city-sky-architecture-metropolis-generated-image-rawpixelView licenseFall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434402/free-photo-image-road-carol-highsmith-colorado-mountainsFree Image from public domain licenseCity sky architecture metropolis. AI generated Image by rawpixel. https://www.rawpixel.com/image/12586921/city-sky-architecture-metropolis-generated-image-rawpixelView licenseSedgwick County, near Julesburg, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434317/free-photo-image-road-landscape-dirtFree Image from public domain licenseU.S. Route 163 leading to Monument Valley in Utah, USA https://www.rawpixel.com/image/438776/deserted-road-the-usaView licenseAt NREL’s Flatirons Campus substation is part of the Power Generation Upgrade Project changing the source of utility… https://www.rawpixel.com/image/3322323/free-photo-image-boulder-building-cableFree Image from public domain licenseCity sky architecture metropolis. AI generated Image by rawpixel. https://www.rawpixel.com/image/12586916/city-sky-architecture-metropolis-generated-image-rawpixelView licenseArmy Master Sgt. Mark Vomund of the SOCOM team wins gold in the 2014 Warrior Games men’s open bicycling category at… https://www.rawpixel.com/image/3388469/free-photo-image-cyclist-athlete-bicycleFree 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 licensePNG Colorado in America outdoors highway freeway. https://www.rawpixel.com/image/13293874/png-colorado-america-outdoors-highway-freewayView 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/434339/free-photo-image-lake-road-carol-highsmithFree Image from public domain licenseCanyons of the Ancients National Monument in far-southwestern Colorado's Montezuma County, USA - Original image from Carol… https://www.rawpixel.com/image/434307/free-photo-image-dirt-road-coloradoFree Image from public domain licenseCity sky architecture metropolis. AI generated Image by rawpixel. https://www.rawpixel.com/image/12586920/city-sky-architecture-metropolis-generated-image-rawpixelView licenseColorado in America outdoors highway freeway. https://www.rawpixel.com/image/13206309/colorado-america-outdoors-highway-freewayView licenseProduction. Lead. Main street of Creede, Colorado. Creede, for many years a "ghost town," has resumed the activities that… https://www.rawpixel.com/image/12302246/image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: Apolinar Rael, rehabiliation client, harvesting beans, Costilla County, Colorado, near… https://www.rawpixel.com/image/12303645/image-person-art-roadFree Image from public domain licenseWelcome to colorful Colorado sign. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303743/free-photo-image-road-board-sign-desert-landscapeFree Image from public domain licenseDusk in rural Sedgwick County, Colorado, near Julesburg, on the Nebraska border - Original image from Carol M.… https://www.rawpixel.com/image/434340/free-photo-image-path-dirt-landscapeFree Image from public domain licenseThe Maroon Bells, just outside Aspen in Colorado's Rocky Mountains USA - Fall aspens in San Juan County, Colorado USA -… https://www.rawpixel.com/image/434398/free-photo-image-america-public-domain-americasFree Image from public domain licenseOld time professional migratory laborer camping on the outskirts of Perryton, Texas at opening of wheat harvest. With his… https://www.rawpixel.com/image/12239887/photo-image-face-person-skyFree Image from public domain licenseCar on the plain. Washington County, Colorado. Sourced from the Library of Congress. https://www.rawpixel.com/image/12241538/photo-image-cloud-person-skyFree Image from public domain licensePresident Joe Biden's motorcade departs Denver International Airport, Tuesday, September 14, 2021, en route to the National… https://www.rawpixel.com/image/9653281/image-person-public-domain-houseFree Image from public domain licenseA macro shot of a dirt path in Mount Sanitas Trail in Boulder, Colorado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300875/free-photo-image-asphalt-boulder-brown-backgroundFree Image from public domain licensePresident Joe Biden departs Eagle County Regional Airport in Gypsum, Colorado, Wednesday, October 12, 2022, en route to Camp… https://www.rawpixel.com/image/11071593/photo-image-plant-forest-treeFree Image from public domain licenseMay 14, 2018 - Wind turbines in Kodiak, Alaska. Original public domain image from Flickr https://www.rawpixel.com/image/3322554/free-photo-image-alaska-alaskan-village-asphaltFree Image from public domain licenseColorado, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300391/free-photo-image-asphalt-car-images-pictures-cc0Free Image from public domain licenseFlagstaff TREX 11/2/21Flagstaff Prescribed Fire Training Exchange (TREX) offers firefighters the opportunity to get hands on… https://www.rawpixel.com/image/9653349/photo-image-hands-person-fireFree Image from public domain licenseProduction. Lead. Reopened mine workings near Creede, Colorado. Creede, for many years a "ghost town," has resumed the… https://www.rawpixel.com/image/12302245/image-plant-sky-treeFree Image from public domain licenseFree state border welcome sign, Arizona image, public domain travel CC0 photo. https://www.rawpixel.com/image/5909047/image-public-domain-plant-mountainFree Image from public domain licenseBlack Cañon, Colorado River, Looking Above From Mirror Bar by Timothy H O Sullivan https://www.rawpixel.com/image/14247278/photo-image-person-sky-waterFree Image from public domain licenseSand Dunes Trail, Salida, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3302763/free-photo-image-road-moon-astronomy-cc0Free Image from public domain licenseA dozer operator heads out to repair dozer lines put in to contain the Dodge Springs Fire. Photo by Jess D. Harvey/USDA… https://www.rawpixel.com/image/9653646/image-person-fire-public-domainFree Image from public domain licenseMAY 15 Fire danger signKINGMAN, AZ - MAY 15: Fire danger sign, rating "very high", outside Kingman Field Office Kingman… https://www.rawpixel.com/image/9653565/image-plant-person-fireFree Image from public domain licenseAerial panorama of the Ernie Schirmer Farms cotton harvest where family, farmers and workers come together, in Batesville… https://www.rawpixel.com/image/3260860/free-photo-image-aerial-view-agriculture-airfieldFree Image from public domain license The Dairy Cheer restaurant in Pikeville, an eastern Kentucky city named for General Zebulon Pike… https://www.rawpixel.com/image/8047850/photo-image-plant-tree-roadFree Image from public domain licenseSculptor Lawrence Argent's "I See What You Mean" big, blue bear peers into the Colorado Convention Center in Denver. https://www.rawpixel.com/image/2370982/photo-image-plant-person-artFree Image from public domain licenseA bridge crossing over a fenced road at the Vail Ski Resort in Colorado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299798/free-photo-image-arch-arched-architectureFree Image from public domain licenseFall in the San Juan Mountains of Conejos County, Colorado, near the New Mexico border - Original image from Carol M.… https://www.rawpixel.com/image/434457/free-photo-image-forest-road-nature-streetFree Image from public domain licenseAspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… https://www.rawpixel.com/image/434344/free-photo-image-dirt-road-scenicFree Image from public domain licenseThe Santa Monica Pier is a large double-jointed pier located at the foot of Colorado Avenue in Santa Monica, California.… https://www.rawpixel.com/image/434088/free-photo-image-los-angeles-street-santa-monicaFree 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 license[Untitled photo, possibly related to: Creede, Colorado. Lead and silver mining in a former "ghost town"]. Sourced from the… https://www.rawpixel.com/image/12306889/image-dog-person-roadFree Image from public domain licenseProduction. Lead. Reopened mine workings near Creede, Colorado. Creede, for many years a "ghost town," has resumed the… https://www.rawpixel.com/image/12303828/image-wood-road-houseFree Image from public domain licenseCreede, Colorado. Lead and silver mining in a former "ghost town". Sourced from the Library of Congress. https://www.rawpixel.com/image/12306868/image-person-sky-roadFree 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/582338/carol-highsmiths-arizona-photographFree Image from public domain licenseMembers of growers' cooperative receive new potato sacks, Monte Vista, Colorado. Sourced from the Library of Congress. https://www.rawpixel.com/image/12303857/image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Loveland Pass, Colorado. The road leading to the pass]. Sourced from the Library of… https://www.rawpixel.com/image/12307853/image-cloud-moon-skyFree Image from public domain license[Untitled photo, possibly related to: Men watching World Series baseball scores on main street, Montrose, Colorado]. Sourced… https://www.rawpixel.com/image/12303861/image-face-person-baseballFree Image from public domain licenseMorris Cooke and H.H. Bennett, members of the drought committee. Colorado. Sourced from the Library of Congress. https://www.rawpixel.com/image/12306320/image-face-hand-peopleFree Image from public domain licenseProduction. Lead. Salvaging scrap iron from an abandoned silver mine near Creede, Colorado where old lead mines have been… https://www.rawpixel.com/image/12302818/image-person-sky-roadFree Image from public domain licenseProduction. Lead. Typical country near Creede, Colorado in which old lead mines have been reopened. Creede, for many years a… https://www.rawpixel.com/image/12303125/image-person-sky-roadFree Image from public domain licensePennybacker Bridge in Austin, Texas, United States https://www.rawpixel.com/image/426920/free-photo-image-infrastructure-austin-hill-countryView licenseBeautiful sunset near the town of Ovid (and close to the Nebraska border) in Sedgwick County, Colorado. Original image from… https://www.rawpixel.com/image/582509/carol-highsmiths-colorado-photographFree Image from public domain license[Lincoln Avenue in Steamboat Springs, Colorado]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12333255/image-cloud-person-skyFree Image from public domain licenseLong mountain ridges and wooded valleys in Colorado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3292323/free-photo-image-abies-alpine-buildingFree Image from public domain licenseMountain view along the "Million Dollar Highway" in Ouray County, between Silverton and Ouray, high in the San Juan… https://www.rawpixel.com/image/582477/carol-highsmiths-colorado-photographFree Image from public domain licenseNREL,-owned electric vehicles (EVs) below solar canopy at the Vehicle Testing & integration Facility (VTIF), where vehicles… https://www.rawpixel.com/image/3325656/free-photo-image-car-charging-station-alloy-wheel-automobileFree 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 licenseBoulder, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3291258/free-photo-image-boulder-colorado-abies-boulderFree 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 licenseRoad 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[Untitled photo, possibly related to: Stores in old mining town. Leadville, Colorado]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12331777/image-cloud-person-skyFree Image from public domain licenseSilverthorne, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3287736/free-photo-image-aerial-view-basin-cc0Free Image from public domain licenseA drone shot of footpaths near clumps of yellow and gray trees in Silverthorne. Original public domain image from Wikimedia… https://www.rawpixel.com/image/3292796/free-photo-image-aerial-view-agaric-apiaceaeFree Image from public domain licenseCreede, Colorado. Lead and silver mining in a former "ghost town". Sourced from the Library of Congress. https://www.rawpixel.com/image/12339108/image-person-sky-treeFree Image from public domain licenseA stream hugging the side of a cliff in a mountain valley in Colorado. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3287569/free-photo-image-nature-canyon-cc0Free Image from public domain licenseColorado, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289380/free-photo-image-asphalt-cc0-coloradoFree Image from public domain license[Untitled photo, possibly related to: Road to Camp Bird mines and mills. Ouray County, Colorado. Camp Bird is the historical… https://www.rawpixel.com/image/12144007/image-plant-art-skyFree Image from public domain licenseGhost mining town coming to life because of defense mining boom. Montezuma, Colorado. Sourced from the Library of Congress. https://www.rawpixel.com/image/12334841/image-plant-boom-skyFree Image from public domain licenseTrail Ridge Road Summit. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295787/free-photo-image-aerial-view-azure-sky-cc0Free Image from public domain licenseA wooded mountain valley in Colorado in the autumn. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3292910/free-photo-image-abies-aspens-buildingFree Image from public domain license