Cypress Trunks and Thalia, Everglades National Park, Florida, February 21, 1954

Sandstone Boulders, near Capitol Reef National Park, Utah, June 16, 1975

Twenty Mule Team Canyon, Death Valley, California, May 4, 1974

Columns in Hypostyle, Temple of Amun, Karnak, Luxor, Egypt, January 25, 1973

Sculptured Rock, near House Rock Rapids, Marble Canyon, Arizona, June 13, 1967

Sculptured Rock, near House Rock Rapids, Marble Canyon, Arizona, June 13, 1967

Blueberry Leaves and Maple Trunks, Passaconaway, New Hampshire, October 7, 1952

Yellow Leaves and Asters, Sangre de Cristo Mountains, Santa Fe Basin, New Mexico, September 20, 1950

Water-streaked Wall, Warm Spring Canyon, Lake Powell, Utah, September 24, 1965

Pinks and Cinders, near Dam Site on Thjorsa River, Iceland, June 26, 1972

Gold Sand and Sea-worn Black Lava Rocks, Near Budhir, Snaefellsnes, Iceland, July 12, 1972

Talus, South Coast near Radar Station, Iceland, August 2, 1972

Glacial Lake at Foot of Beidhamerkerjokull, a Finger Glacial Lake at Foot of Vatnajokull, South Coast, Iceland, August 1, 1972

Herdhubreid, Table Mountain and Lava Flow from Askja (Volcano), Iceland, July 22, 1972

River with Iron-stained Stones, Kerlingarfjoll, Central Iceland, August 10, 1972

Dogwood and Oak Trees, Daniel Boone National Forest, Red River Gorge, Kentucky, April 19, 1968

Fungus on Log, Great Spruce Head Island, Maine, July 25, 1949

Fungus on Log, Great Spruce Head Island, Maine, July 25, 1949

Moss and Grass on Talus, near Dam Site on Thjorsa River, Iceland, June 26, 1972

Dead Leaves and Pine Needles, Swift Camp Creek, Red River Gorge, Kentucky, April 19, 1968