552. Crater of the Giantess Geyser

[Cityview, possibly in Washington state]

Cave dwellings near Legendary Butte. McElmo Canyon

[Spokane Falls, Spokane, Washington]

Horseshoe Mountain, from below

Navaho Group at a Meeting

Two Navaho Women

Lilium Philadelphicum. Philadelphia, Red or Wood Lily

Steel Mill and Workers' Houses, Birmingham, Alabama, 1936

Wimbrel's Nest, Road to Laugarvatn, Iceland, June 25, 1972

Foss A Sida, South Coast, Northeast of Kirkjubaejarklaustar, Iceland, July 2, 1972

Ice in Glacial Lake, Northern Edge of Eyjafjallajokull (Glacier) near Thorsmork, Iceland, July 7, 1972

Crater Interior, Hnappadalur, Snaefellsnes, Iceland, July 11, 1972

Pigmented Marine Iguana, Cevallos Point, Hood Island, Galápagos Islands, May 27, 1966

Usnea Lichen on Palo Santo, Barrington Island, Galápagos Islands, May 21, 1966

Usnea Lichen on Palo Santo, Barrington Island, Galápagos Islands, May 21, 1966

Palo Santo, Cactus and Lichen, Barrington Island, Galápagos Islands, May 21, 1966

Poppy Field, Eritrea, Euboea, Greece, April 22, 1970

Wind-eroded Consolidated Ash, Kleifarvatn, Iceland, June 21, 1972

Kaluu Cinder Cone, Haleakala Crater, Maui, March 5, 1979