Giant Groundsel, Teleki Valley, Mount Kenya, Kenya, February 13, 1970

Gerenuk Antelope, Amboseli Game Reserve, Kenya, 1970

View North into Processional Colonnade, Temple of Luxor, Egypt, January 27, 1973

Rocks in Teleki Tarn, Mount Kenya, February 14, 1970

Aspen and Pines, Independence Pass Road, Colorado, September 16, 1959

Waterfall Near Gray's Arch, Red River Gorge, Kentucky, April 18, 1968

View into Forecourt of Amenophis [III], Temple of Luxor, Egypt, January 27, 1973

Barrel Cactus near El Arenoso, Baja California, July 27, 1966

Storm Over Mountain, Road from Platero to Route 160, Colorado, September 28, 1978

Blacksmith Plover, Ngorongoro Crater, Tanzania, Africa, February 1970

Waterfall in Crevice, Road to Vik on Southern Coast, Iceland, July 1, 1972

View Through Entrance to Court of Ramesses II, Temple of Luxor, January 27, 1973

Flamingos on Lake Natron from the Air, Tanzania, Africa, October 15, 1970

Flamingos on Lake Natron from the Air, Tanzania, Africa, October 15, 1970

Flamingos on Lake Natron from the Air, Tanzania, October 15, 1970

Lobelias and Ferns, Ridge Above Teleki Valley, Mount Kenya, Kenya, February 12, 1970

Storm near Rosillos Mountains, Big Bend National Park, Texas, May 21, 1950

Window Rock & Agave, Big Bend National Park, Texas, May 28, 1950

Homesteaders House, Hole in the Rock Road, Utah, August 28, 1963

Cactus and Garden Chair in Snow, Tesuque, New Mexico, February 22, 1963