View of the Rocky Mountains, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Spectacular Rocky Mountain valley outside Telluride, Colorado - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
View of the Rocky Mountains Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Aerial view of the Flat Tops Wilderness Area, a vast forested area between Glenwood Springs and Steamboat Springs in… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
View of the Rocky Mountains, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
View of the Guadalupe Mountains in Guadalupe Mountains National Park in Hudspeth County, Texas. Original image from Carol M.… Free Image from public domain license 
Colorado Aspens. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
The virtual ghost town of Crystal in Gunnison County, Colorado USA - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Copper Mountain Ski Resort, near the town of Frisco in Summit County, Colorado - Original image from Carol M.… Free Image from public domain license 
View of the Rocky Mountains Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
View of the Southern Appalachian Mountains, looking toward North Carolina. Original image from Carol M. Highsmith’s… Free Image from public domain license 
Mammoth Creek. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall Aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Rocky Mountain near the ski resort of Snowmass Village, Colorado - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Winter wonderland, created by a sudden mountain blizzard along California Highway 36, south of Lassen Volcanic National Park. Free Image from public domain license 
A Durango & Silverton Narrow Gauge Railroad (D&SNG) above the Animas River Valley in La Plata County, Colorado USA - Original… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
Fall in the San Juan Mountains of Conejos County, Colorado, near the New Mexico border - Original image from Carol M.… Free Image from public domain license 
The Maroon Bells, just outside Aspen in Colorado's Rocky Mountains USA - Fall aspens in San Juan County, Colorado USA -… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
Old West heritage town on the outskirts of Durango, Colorado USA - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
The Maroon Bells, just outside Aspen in Colorado's Rocky Mountains USA - Fall aspens in San Juan County, Colorado USA -… Free Image from public domain license 
The virtual ghost town of Crystal in Gunnison County, Colorado USA - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
America's first declared national monument (in 1906): Devils Tower - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
Scenic Railroad train, pulled by a vintage steam locomotive, chugs through the San Juan Mountains in the Colorado county of… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
The Maroon Bells, just outside Aspen in Colorado's Rocky Mountains USA - Fall aspens in San Juan County, Colorado USA -… Free Image from public domain license 
View of the Rocky Mountains, USA - Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
The Lower Falls of the Yellowstone River in northwestern Wyoming's Yellowstone National Park. Twice as high as Niagara Falls… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
A bighorn sheep in Colorado National Monument, a preserve of vast plateaus, canyons, and towering monoliths in Mesa County… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
Catoctin Mountain Park in Maryland. Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
The Maroon Bells, just outside Aspen in Colorado's Rocky Mountains USA - Fall aspens in San Juan County, Colorado USA -… Free Image from public domain license 
Sedgwick County, near Julesburg, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Branding irons on branding day at the Ladder Livestock Ranch's cattle operation in Moffat County, Colorado. Original image… Free Image from public domain license 
A farmer kicks up dust as he readies the ground for planting near Bristol in Prowers County, Colorado. Original image from… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
A bighorn sheep in Colorado National Monument, a preserve of vast plateaus, canyons, and towering monoliths in Mesa County… Free Image from public domain license 
The Lower Falls of the Yellowstone River in northwestern Wyoming's Yellowstone National Park. Twice as high as Niagara Falls… Free Image from public domain license 
Lush fields under threatening skies in Montezuma County, Colorado, USA - Original image from Carol M. Highsmith’s… Free Image from public domain license 
Bridal Veil Falls, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Image from public domain license 
Sheep at the Ladder Livestock Ranch, which is based across the highway from Colorado in Carbon County, Wyoming. Original… Free Image from public domain license 
Sheep at the Ladder Livestock Ranch, which is based across the highway from Colorado in Carbon County, Wyoming. Original… Free Image from public domain license 
"Warmth of Winter" exhibition at the annual Winter Carnival in Steamboat Springs, Colorado - Original image from Carol M.… Free Image from public domain license 
A mixed herd of wild and domesticated horses frolics on the Ladder Livestock ranch, at the Wyoming-Colorado border. Original… Free Image from public domain license 
Mature corn, almost ready for harvesting, on a farm in Sauk County, Wisconsin. Original image from Carol M. Highsmith’s… Free Image from public domain license 
Colorado Aspens. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced… Free Image from public domain license 
A small portion of the Fanny Bennett Hemlock Grove on one side of Spruce Knob, West Virginia. Old Mammoth Road. Original… Free Image from public domain license 
Mount Shasta, California. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Lafayette, Lousiana Swamp. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Image from public domain license 
Colorado's Dolores River Valley in autumn - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Scene in the San Juan Mountains above Silverton, Colorado, along the mostly dirt-and-gravel "Alpine Loop" - Original image… Free Image from public domain license 
Fall in the San Juan Mountains of Conejos County, Colorado, near the New Mexico border - Original image from Carol M.… Free Image from public domain license 
The barren Nevada desert near Las Vegas. Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Boxes containing bees, for pollation, beside a field in Rio Grande County, Colorado - Original image from Carol M.… Free Image from public domain license 
Fall aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Aspens in San Juan County, Colorado USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
The set sets behind large, metal silos on a farm in Jackson County, Iowa. Original image from Carol M. Highsmith’s… Free Image from public domain license 
"Alpine Loop" San Juan Mountains above Silverton, Colorado USA - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
A bighorn sheep in Colorado National Monument, a preserve of vast plateaus, canyons, and towering monoliths in Mesa County… Free Image from public domain license 
The New River Gorge Bridge. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Image from public domain license 
The Redwood National and State Parks along the coast of northern California. Original image from Carol M. Highsmith’s… Free Image from public domain license 
The Rocky Mountains, Colorado. Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Image from public domain license 
Rolling irrigation sprinkler at work along the road carrying U.S. Highways 62-180 near the New Mexico border in Hudspeth… Free Image from public domain license 
Rocky Mountains National Park Colorado, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Teapot Rock, a distinctive sedimentary rock formation in Natrona County, Wyoming. Original image from Carol M.… Free Image from public domain license 
Fall aspens in the Colorado Rockies, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Stream in Eldorado Canyon State Park in Boulder County, Colorado - Original image from Carol M. Highsmith’s America… Free Image from public domain license 
The waterfall at MacArthur-Burney Falls Memorial State Park. Original image from Carol M. Highsmith’s America, Library… Free Image from public domain license 
Dirt road beside a cornfield near Clarkesville in Habersham County, Georgia. Original image from Carol M. Highsmith’s… Free Image from public domain license 
Angels Camp, California's most famous Gold Rush town, thanks to writer and humorist Mark Twain. Original image from Carol M.… Free Image from public domain license 
Deep, rich furrows in farmland east of Lamesa in Dawson County, Texas. Original image from Carol M. Highsmith’s… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
Scenery at Colorado National Monument, USA - Original image from Carol M. Highsmith’s America, Library of Congress… Free Image from public domain license 
A living snow globe scene and winter wonderland, created by a sudden mountain blizzard along California Highway 36. Original… Free Image from public domain license 
Devils Tower, also known by more benign names, including Bear Lodge, by indigenous American Indians, in northeastern Wyoming.… Free Image from public domain license