Yellow Mold and Seep, Coyote Canyon, Utah, August 14, 1971

Wet Wall and Mimulus at Jacob Hamlin Arch, Coyote Canyon, Utah, August 14, 1971

Wet Wall and Mimulus at Jacob Hamlin Arch, Coyote Canyon, Utah, August 14, 1971

Sheep Skeleton and Pinks, Uintah Indian Reservation, Utah, June 15, 1975

Upheaval Dome, Canyonlands National Park, Utah, May 1, 1973

Dead Juniper, Waterpocket Fold, Utah, June 18, 1975

Sunrise Across River, Music Temple Bar, Glen Canyon, Utah, September 23, 1961

Sunrise Across River, Music Temple Bar, Glen Canyon, Utah, September 23, 1961

Small Waterfall from Spring, Coyote Canyon, Utah, August 15, 1971

Seeps in Alcove, Coyote Canyon, Utah, August 18, 1971

Osprey, Great Spruce Head Island, Maine, June 28, 1949

Alder Flycatcher, July 20, 1940

Eroded Sandstone Rock, Canyonlands National Park, Utah, April 30, 1973

Summer Snowstorm, Bryce Canyon, Utah, June 20, 1975

Inclusions in Sandstone, Willow Tanks, Waterpocket Fold, Utah, June 18, 1975

Gold Reflections on Wet Wall, Willow Canyon, Utah, August 12, 1971

Dead Oak Branches in Alcove, Coyote Canyon, Utah, August 18, 1971

Wet Wall and Mimulus, Willow Canyon, Utah, August 12, 1971

Yellow Algae in Stream, Coyote Canyon, Utah, August 14, 1971

Streaked Wall Under Seep at Jacob Hamlin Arch, Coyote Canyon, Utah, August 14, 1971