"Richard R. Hice, State Geologist."; Contour interval 100 feet.; Originally published as part of Oil and gas map of southwestern Pennsylvania, 1915 (Harrisburg, Pa.: W.S. Ray, State Printer, 1916). 69 x 70 Centimeters Scale: 1:250,000; 1 inch equals 4 miles General Map Collection
Creator:
Pennsylvania. Bureau of Topographic and Geologic Survey
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