Pylon Carrying Electricity from the Glen Canyon Dam

Navajo Tree of Life, Museum of Navajo Ceremonial Art, Santa Fe, New Mexico

An Early Navaho Pot, Museum of New Mexico

Irrigating a Newly Plowed Field

Sheep Being Gathered at Leupp for Shipment

Lilienthal Child

Virginia McCrossin

Balsam Flowers, Ngurdoto Crater Rim, Arusha National Park, Tanzania, July 7, 1970

Fever Trees, Ngorongoro Crater, Tanzania, July 15, 1970

Weeds and Fever Trees, Serengeti, Tanzania, July 19, 1970

Weathered Granite, Maasai Kopjes, Serengeti, Tanzania, July 20, 1970

Wildebeest Carcass, Western Corridor, Serengeti, Tanzania, July 21, 1970

Gol Kopjes, Serengeti, Tanzania, September 22, 1970

Cheetah in Tree, Seronera, Serengeti, Tanzania, September 27, 1970

Rock Hyraxes, Seronera, Serengeti, Tanzania, September 28, 1970

Forest in Fog, Mount Meru, Arusha National Park, Tanzania, July 8, 1970

Rocks in Gol Kopjes, Serengeti, Tanzania, September 22, 1970

Leopard with Kill, Serengeti, Tanzania, Africa, 1970

Cheetah Standing on Horizontal Tree Trunk, Serengeti, Tanzania, Africa, 1970

Crust on Lake Natron from the Air, Tanzania, October 7, 1970