[Trip down Colorado River with Georgia O'Keeffe and Porter family, August 1961]

[Trip down Colorado River with Georgia O'Keeffe and Porter family (Steve and Kathy)]

Pear Tree, El Zaquara, Santa Fe, May 1, 1940

Apple Tree, El Zaquara, Santa Fe, May 1, 1940

Water Stains and Ferns, Music Temple, Glen Canyon, Utah, September 23, 1961

[Trip down Colorado River with Georgia O'Keeffe and Porter family (Steve and Kathy)]

[Trip down Colorado River with Georgia O'Keeffe and Porter family (Steve and Kathy)]

Gravel at Edge of River, Star Bar, San Juan River, Utah, May 23, 1962

[Trip down Colorado River with Georgia O'Keeffe and Porter family (Steve and Kathy)]

Church Yard, Velarde, New Mexico, October 1948

Merry Christmas Arch, Madrid, New Mexico, November 1946

Evening Clouds, Looking West, Tesuque, New Mexico, July 1948

Evening Clouds, Looking West, Tesuque, New Mexico, July 1948

White Sands National Monument, New Mexico, February 4, 1947

Dead Tree, Pool, Rain Drops, Waterpocket Fold, Utah, August 21, 1963

Sunset Clouds and Plane, Waterpocket Fold, Utah, August 19, 1963

Red-winged Blackbird, Male, Illinois, June 29, 1941

Water Seep, Nevels Canyon, San Juan River, Utah, May 25, 1962

Ferns, Moss, Dripping Water, Redbud Canyon, San Juan River, Utah, May 25, 1962

Northern Parula Warbler, Male, Great Spruce Head Island, Maine, June 22, 1968