Taken at dusk or dawn from various angles during eruption.…

Ansel Adams • 1941

Taken at dusk or dawn from various angles during eruption. "Old…, 1941

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Taken at dusk or dawn from various angles during eruption. "Old Faithful Geyser, Yellowstone National Park," Wyoming. (vertical orientation)

Credit: National Archives, Records of the National Park Service (Record Group 79), 79-AAT-21. Public domain (U.S. federal record). National Archives: access unrestricted, use unrestricted.