Eagle Island, Maine, 1937

Sheep Luggers

Eagle's Nest Lake, New Mexico, September 30, 1949

Horse Skull, O'Keeffe's House, Abiquiu, New Mexico, August 5, 1952

Rio Grande Valley North of Taos, New Mexico, October 21, 1948

Rio Grande Valley North of Taos, New Mexico, October 21, 1948

Bentonite Mounds, Heartnut Desert, Utah, August 29, 1963

Rufous Hummingbird, Juvenile Male, Tesuque, New Mexico, September 3, 1960

Williamson Sapsucker, Male, Hyde Memorial State Park, New Mexico, July 2, 1952

Yellow-bellied Flycatcher, Pittsburg, New Hampshire, July 6, 1965

Mud Ripples and Pool, Hidden Passage, Glen Canyon, Utah, September 22, 1961

Rocks in Aztec Creek, Glen Canyon, Utah, September 5, 1962

Lupin and Sage, Craters of the Moon, Idaho, July 3, 1975

Vermilion Flycatcher, Male and Female, X-9 Ranch, Tucson, Arizona, May 8, 1958

Blue-throated Hummingbird, Southwestern Research Station, Chiricahua Mountains, Arizona, May 1959

Rivoli's Hummingbird, Southwestern Research Station, Chiricahua Mountains, Arizona, May 1959

Pond and Aspens, Grand Teton National Park, Wyoming, June 25, 1975

Song Sparrow, Great Spruce Head Island, Maine, June 24, 1945

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

Hidden Passage, Glen Canyon, Utah, August 27, 1961