Flowers at the Desert Botanical Garden. Original image from Carol M. Highsmith’s America, Library of Congress… Free Photo from public domain license 
Poppy fields. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by… Free Photo from public domain license 
Spring Wisteria. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced… Free Photo from public domain license 
Poppy fields. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally enhanced by… Free Photo from public domain license 
Sunflowers in Nebraska. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Photo from public domain license 
Commercially grown flowers in California field. Original image from Carol M. Highsmith’s America, Library of Congress… Free Photo from public domain license 
Profusion of the Texas State Flower -- subtle bluebonnets -- in a field in Boerne, Texas, west of San Antonio. Original image… Free Photo from public domain license 
Texas is famous for, and even more proud of, its bluebonnet fields, which come to life each spring in the Hill Country. This… Free Photo from public domain license 
Tulips pop in late winter at the Bayou Bend Collection and Gardens in the River Oaks neighborhood of Houston, Texas. Original… Free Photo from public domain license 
Tulips pop in late winter at the Bayou Bend Collection and Gardens in the River Oaks neighborhood of Houston, Texas. Original… Free Photo from public domain license 
Spring tulips and dogwoods on the George Washington Memorial Parkway. Original image from Carol M. Highsmith’s America… Free Photo from public domain license 
Northern California elk. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Photo from public domain license 
NASA Fire Rescue Services are on the scene to support a controlled burn in the vicinity of the Industrial Area at NASA's… Free Photo from public domain license 
Plantings at the Desert Botanical Garden, a 140-acre botanical garden in Phoenix, Arizona, that features many examples of the… Free Photo from public domain license 
A portion of the in the “Granite Dells” — exposed bedrock of estimated-1.4-billion-year-old igneous-rock… Free Photo from public domain license 
Lush fields under threatening skies in Montezuma County, Colorado. Original image from Carol M. Highsmith’s America… Free Photo from public domain license 
Landscape, including many wildflowers for which the area is famous, around Crested Butte, Colorado. The formation that gives… Free Photo from public domain license 
Dairy cows in a field in Tremealeau County, Wisconsin. Original image from Carol M. Highsmith’s America, Library of… Free Photo from public domain license 
There's not much to graze on for these horses in the rugged terrain north of Big Bend National Park in the "Trans-Pecos"… Free Photo from public domain license 
Horse within a lovely meadow in the Lyndon B. Johnson National Historical Park in Johnson City, Texas. Original image from… Free Photo from public domain license 
Rainbow over the West Texas prairie - Original image from Carol M. Highsmith’s America, Library of Congress collection.… Free Photo from public domain license 
Mules gaze from opposite directions in rural Clayton County, Iowa. Original image from Carol M. Highsmith’s America… Free Photo from public domain license 
Cacti at the Desert Botanical Garden a 147-acre botanical preserve in Phoenix, Arizona. Founded by the Arizona Cactus and… Free Photo from public domain license 
View at the A Bar A guest ranch, near Riverside in Carbon County, Wyoming. Original image from Carol M. Highsmith’s… Free Photo from public domain license 
Cows in Cajun Country Farm. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… Free Photo from public domain license 
Mule enjoying the warm weather in California. Original image from Carol M. Highsmith’s America, Library of Congress… Free Photo from public domain license 
Horse within a lovely meadow in the Lyndon B. Johnson National Historical Park in Johnson City, Texas. Original image from… Free Photo from public domain license 
Engaging mule at the Heritage Farmstead Museum in North Texas in Plano, a northern suburb of Dallas, Texas. Original image… Free Photo from public domain license 
Horse in the training, racing, and polo grounds section of Aiken, South Carolina. Original image from Carol M.… Free Photo from public domain license 
Horses head for the corral in the daily roundup of horses, Riverside, Wyoming. Original image from Carol M. Highsmith’s… Free Photo from public domain license 
Beautiful horses romp at the Cannon Quarter Horse Ranch near Venus, Texas. Original image from Carol M. Highsmith’s… Free Photo from public domain license