Pocahontas Pleading for the Life of John Smith

Young Engineer, Gainesville, Texas, Byrd Williams II

Grass, Snow, Sangre de Cristo Mountains, Great Sand Dunes National Monument, Colorado, September 30, 1959

Spruce Trees and River, Ashcroft Road, Colorado, September 17, 1959

Spruce Trees and River, Ashcroft Road, Colorado, September 17, 1959

Spruce Trees and River, Ashcroft Road, Colorado, September 17, 1959

[Railroad tracks, tree stumps and fence]

[Railroad tracks, telegraph pole and river]

Aspens and Fallen Leaves, Aspen, Colorado, September 30, 1951

Near Lee's Ferry, Arizona, 1990

[Railroad tracks and man standing beside tracks]

Red Leaves in Rock Cracks, Great Spruce Head Island, Maine, August 23, 1955

[Wooden bridge]

Cliff, Moonlight Creek, San Juan River, Utah, May 23, 1962

Sunset Clouds, Tesuque, New Mexico, Summer 1960

Clouds, Waterpocket Fold, Utah, August 19, 1963

Cottonwood Tree, Lava Canyon, Grand Canyon, Arizona, June 17, 1967

Hedgehog Cactus with Terpentine Bush, Madrona Ranger Station, Saguaro National Monument, Arizona, April 13, 1953

Psilostrophe cooperi, Old Spanish Trail, Tucson, Arizona, April 15, 1953

Gerlache Strait from Research Vessel "Hero", Antarctica, February 25, 1976