U.S. National Archives:
Yellow arnica blossoms, 05/1972.
U.S. National Archives:
Forest near Wolf Creek Pass, 05/1972
U.S. National Archives:
White canyon near Sipapu Bridge. Natural Bridges National Monument, 05/1972.
U.S. National Archives:
Escalante River, 05/1972.
U.S. National Archives:
Escalante River Gorge, 05/1972.
U.S. National Archives:
Mancos River Valley, 05/1972.
U.S. National Archives:
Cliff Palace is the largest ruin discovered in Mesa Verde...05/1972.
U.S. National Archives:
Backpacker, 05/1972.
U.S. National Archives:
White canyon near the Sipapu Bridge Natural Bridges National Monument, 05/1972.
U.S. National Archives:
Eroded sandstone, part of Indian ruins dating from 1100 to 1300 A.D., 05/1972.
U.S. National Archives:
Mt. Sneffels, 05/1972.
U.S. National Archives:
Trading post, 05/1972.
U.S. National Archives:
Tamarisk tree beside the Escalante River, 05/1972.
U.S. National Archives:
Public relations by logging company, 05/1972.
U.S. National Archives:
Great Sand Dunes National Monument, 05/1972.
U.S. National Archives:
Modern graffiti carved into rock near Cliff Palace, 05/1972.
U.S. National Archives:
Mule deer. Great Sand Dunes National Monument, 05/1972.
U.S. National Archives:
Sculptured by erosion, 05/1972.
U.S. National Archives:
Forest near Wolf Creek Pass, 05/1972.
U.S. National Archives:
Cliff Palace is the largest remaining village of the pre-Columbian Indians..., 05/1972.
U.S. National Archives:
Escalante Canyon, 05/1972.
U.S. National Archives:
Colorado--Pagosa Springs, 05/1972.
U.S. National Archives:
Escalante River and Canyon, 05/1972.
U.S. National Archives:
Harris Wash, Escalante Canyon, 05/1972.
U.S. National Archives:
Cliff Palace, first major ruin discovered in the Mesa Verde, 05/1972.
U.S. National Archives:
Escalante River and Canyon, 05/1972.
U.S. National Archives:
Caterpillars in flowering tree, 05/1972.
U.S. National Archives:
Porcupine in tree Great Sand Dunes National Monument, 05/1972.
U.S. National Archives:
Hovenweep National Monument, 05/1972.
U.S. National Archives:
Grazing sheep, near Blue Mesa Reservoir, 05/1972.
