"Large Formations or Dome in the 'Hall of the Giants' or…
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"Large Formations or Dome in the 'Hall of the Giants' or 'Big Room,' Carlsbad Caverns National Park," New Mexico (Vertical Orientation)
Credit: National Archives, Records of the National Park Service (Record Group 79), 79-AAW-5. Public domain (U.S. federal record). National Archives: access unrestricted, use unrestricted.
