Big Sur Coast with Morning Glories, California, September 25, 1975

Lichen on Fir Trunks, Lassen Volcanic Park, California, August 8, 1975

Pothole, Granite Watershed, Donner Pass, California, September 25, 1984

Sand Dunes, Death Valley, California, May 4, 1974

Colored Sediments, Death Valley, California, May 5, 1974

Colored Sediments, Death Valley, California, May 5, 1974

Redwood Trunks, L.B.J. Grove, Redwood Park, California, August 6, 1975

Vines on Redwood Trunk, L.B.J. Grove, Redwood Park, California, August 7, 1975

Kelp, South of Lucia, Big Sur, California, September 26, 1975

Eroded Deposits, Artists Drive, Death Valley, California, May 1, 1974

Eroded Sandstone on Shore, La Jolla, California, February 11, 1968

From Zabriskie Point, Death Valley, California, May 1, 1974

Redwood Trunks and Undergrowth, L.B.J. Grove, Redwood Park California, August 6, 1975

Eroded Sandstone and Mussels, La Jolla, California, February 11, 1968

Eroded Sandstone and Mussels, La Jolla, California, February 11, 1968

Stones and Pine Needles, Gold Lake, California, September 28, 1984

Stones and Pine Needles, Gold Lake, California, September 28, 1984

Imperial Palace, Peking, 1980

Loess Cave Houses near Xi'an, Shaanxi, 1980

Flying Goose Pagoda, Xian, China, 1980