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

Snowbank and Waterfall, Cascade Pass, North Cascades National Park, July 31, 1975

Snowbank and Waterfall, Cascade Pass, North Cascades National Park, July 31, 1975

Nisqually Glacier and Avalanche Lilies, Mount Rainier, Washington, August 2, 1975

Nisqually Glacier and Avalanche Lilies, Mount Rainier, Washington, August 2, 1975

Nisqually Glacier and Avalanche Lilies, Mount Rainier, Washington, August 2, 1975

Opuntia Cactus and Rocks, Big Bend National Park, Texas, June 3, 1950

Opuntia Cactus and Rocks, Big Bend National Park, Texas, June 3, 1950

Green and Yellow Algae on Sea Cliff, Oregon Beach, July 14, 1975

Seaweed-covered Rocks, Devil's Punch Bowl, Oregon, July 15, 1975

Dead Spruce, Meadows, Mount Hood National Forest, Oregon, July 18, 1975

Sedum on Cliff, Mount Baker National Forest, Washington, July 29, 1975

Cypress Knees in Water, Four Hole Swamp, South Carolina, October 30, 1969

Canyon Bottom, Ernst Tinaja, Big Bend National Park, Texas, November 2, 1978

Red Alder, Hoh Rain Forest, Olympic Peninsula, Washington, July 24, 1975

Heather and Tree Line Spruces, Mount Rainier, Washington, August 2, 1975

Brook, Oswald State Park, Oregon, July 16, 1975

Tidal Pool and Rocks, Second Beach, Olympic Peninsula, Washington, July 26, 1975

Stump on Beach, Oil City Beach, Olympic Peninsula, Washington, July 25, 1975

Tidal Pool and Rocks, Second Beach, Olympic Peninsula, Washington, July 26, 1975