Second Pylon, Medinet Habu, West Thebes, Egypt, January 23, 1973

Grass, Braulio Carrillo Park, Costa Rica, March 16, 1984

Fallen Aspen Leaves, Platero Road, Colorado, September 28, 1978

Upper Rio Grande, Stony Pass Road, Colorado, September 29, 1978

Green Seaweed (West), Espinosa Point, Fernandina Island, Galápagos Islands, April 7, 1966

Wind Clouds Over Dunes, Indian Springs, Colorado, September 12, 1976

Foxtail Grass, Indian Spring, Great Sand Dunes National Monument, Colorado, September 11, 1976

Sand Dunes and Grass, Great Sand Dunes National Monument, Colorado, September 10, 1976

Cormorant's Nest, Colt Head Island, Maine, June 28, 1949

Double-crested Cormorants, Colt Head Island, Maine, July 15, 1949

Balanced Rocks, Balanced Rock Canyon, Glen Canyon, Utah, September 6, 1962

Brown Weeds, Bridge Canyon, Glen Canyon, Utah, April 11, 1963

Snow on Sangre de Cristo Mountains from Roof of House in Tesuque, New Mexico, January 1, 1948

Jemez Mountains, Across the Rio Grande at San Ildefonso, New Mexico, October 11, 1948

La Cantinita Cafe, Algodones, New Mexico, March 23, 1947

Cemetery at Questa, New Mexico, October 14, 1948

Cross-Bedded Sandstone with Small stream, Zion National Park, Utah, May 9, 1969

Arch and Box Elder Tree, Davis Gulch, Escalante River, Lake Powell, Utah, May 12, 1965

Reflections in Pool, Indian Creek, Escalante River, Utah, September 22, 1965

Orange Erosion, Clay Hills Pass, Utah, September 19, 1965