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File unit: Resource Issues File, 1962 - 2001 in the Series: Records About National Natural Landmarks, created 1/12/1982 - 5/2004, documenting the period 1962 - 2001 - Record Group 79 (info)
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The U.S. National Archives and Records Administration 8601 Adelphi Road, College Park, MD 20740-6001 • Telephone: 1-86-NARA-NARA or 1-866-272-6272