"The Giant Domes in the Interior of Carlsbad Cavern,…
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"The Giant Domes in the Interior of Carlsbad Cavern, Carlsbad Caverns National Park," New Mexico (Vertical Orientation)
Credit: National Archives, Records of the National Park Service (Record Group 79), 79-AAW-2. Public domain (U.S. federal record). National Archives: access unrestricted, use unrestricted.
