1949. Prepared under the direction of the Chief of Staff, U.S. Air Force for the Aeronautical Chart Service.; Base no. 1, March 1949.; 31 March 1949.; AL... The Survey.
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1914. Geological Survey (U.S.). Relief shown by spot heights and contours. Contour interval 100 feet.; George Otis Smith, Director USGS. R.B. Marshall, Chief Geographer; Sledge Ta... The Survey.
1950. Henderson, John R. Includes text and location map. Scale approximately 1:63,360. The Survey.