Fort Rock Cave opening, 1966.

Fort Rock Cave opening, 1966 Courtesy Oreg. Hist. Soc. Research Lib. OrHi80012

Fort Rock Cave, c. 1966.

Fort Rock Cave, c. 1966 Courtesy UOMNCH

Fort Rock sandals, 1938, bb006673.

Sagebrush sandals excavated at Fort Rock Cave by Dr. Luther Cressman, 1938. Luther Cressman photo, courtesy Oreg. Hist. Soc. Research Lib., bb006673

Fort Rock sandal (left); Catlow Cave sandal (right).

Fort Rock sandal, ca 9490 yrs ago (l); Catlow sandal, 9300 yrs ago (r) Courtesy UOMNCH

Ft. Rock Cave, Cressman, Dr. Luther, at, ba017849.

Luther Cressman at Fort Rock Cave. Oreg. Hist. Soc. Research Lib., ba017849

Ft. Rock Cave, Cressman, Luther, at, bb004556.

Luther Cressman speaking at Dedication of Fort Rock Cave historical landmark, June 1963. Oreg. Hist. Soc. Research Lib., bb004556