Bentonite Mounds, Heartnut Desert, Utah, August 29, 1963

Streaks on Wall in Seep at Jacob Hamlin Arch, Coyote Canyon, Utah, August 18, 1971

Reflections on Wet Wall and in Stream, Willow Canyon, Utah, August 13, 1971

Upheaval Dome, Canyonlands National Park, Utah, May 1, 1973

Gypsum Deposits, Capitol Reef National Park, Utah, June 18, 1975

Boulder Field, Glenn Springs Road, Big Bend National Park, Texas, June 2, 1950

Pink-sided Junco, Tesuque, New Mexico, December 15, 1947

Redstart, Male, Great Spruce Head Island, Maine, June 25, 1971

Chestnut-sided Warbler, Female, Silver Lake, New Hampshire, June 23, 1953

Barn Swallow, Great Spruce Head Island, Maine, August 21, 1954

Red-eyed Vireo, Ely, Minnesota, July 13, 1962

Black-headed Grosbeak, Male, Aspen Valley, New Mexico, July 2, 1951

Navajo Mother and Children

Ramah, New Mexico, Eastern Boundary

Mummy Cave Ruin, Canyon de Chelly

[Building near Springerville]

[Man on horseback in Canyon de Chelly]

White House, Canyon de Chelly

Lambs to be Sold Through Tribal Store

Much Overgrazed Land in Arizona Suffers from Wind Erosion