Marsh Grasses, Malheur National Wildlife Refuge, Oregon, July 11, 1975

Icicles on Cliff, Roaring Fork, Great Smoky Mountains National Park, Tennessee, March 12, 1969

Surf on Sea Cliff, Oswald State Park, Oregon, July 16, 1975

Maples and Firs, Hoh Rain Forest, Olympic Peninsula, Washington, July 24, 1975

Maples and Ferns, Hoh Rain Forest, Olympic Peninsula, Washington, July 24, 1975

Mist and Firs, Rat Trap Pass, North Cascades, Washington, July 29, 1975

Snowbank in Forest, Meadows, Mount Hood National Forest, Oregon, July 18, 1975

Agave lechuguilla, Rough Spring, Big Bend National Park, Texas, November 4, 1978

Pool and Rocks, Grand Gulch, San Juan River, Utah, May 22, 1962

Truchas, New Mexico, November 1940

Hedgehog Cactus, Solitario Uplift, Big Bend Ranch, Texas, November 5, 1978

Tree and Rocks, Music Temple, Glen Canyon, Utah, September 23, 1961

Water Stains and Red Flower, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Water Stains and Red Flower, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Water Stains and Red Flower, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Water Stains and Red Flower, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Sunrise on Olympia Bar, Glen Canyon, Utah, August 25, 1961

Pool and Rocks in Hidden Passage, Glen Canyon, Utah, August 27, 1961

Cliff Wall, Music Temple, Glen Canyon, Utah, September 23, 1961

Sunrise, Moon Reflection in Pool, Navajo Creek, Glen Canyon, Utah, August 27, 1961