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1959 September 8

[photographs, gelatin silver

Collier Glacier, aerial phot …

U.S. Geological Survey, phot …

1959 September 8

[photographs, gelatin silver

Collier Glacier, aerial phot …

U.S. Geological Survey, phot …

1959 September 8

[photographs, gelatin silver

Collier Glacier, aerial phot …

U.S. Geological Survey, phot …