Claysville folio, Pennsylvania
Author(s)
Bibliographic Information
Claysville folio, Pennsylvania
(Geologic atlas of the United States, no. 180)
U.S. Geological Survey, 1912
Cartographic Material(Map)
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Note
MAP:Scale 1:62,50 (W 80[0]15'--W 80[0]30'/N 40[0]--N 40[0]15'
Title from cover
At head of title: Department of the Interiour, United States Geological Survey, George Otis Smith, director