1959. 2011-12-12T21:36:06Z. 2022-03-29T20:40:32Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
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1959. 2011-12-12T21:36:22Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
1959. 2011-12-12T21:36:24Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
1959. 2011-12-12T21:36:26Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
1959. 2011-12-12T21:36:27Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
1959. 2011-12-12T21:36:29Z. 2022-03-29T20:40:34Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Pennsylvania.
7. Warren
1959. 2018-02-13T14:31:26Z. 2020-08-14T18:08:36Z. United States. Army Map Service, cartographer. Interior--Geological Survey. English. cartographic image. Public. Pennsylvania and New York (State).
1959. 2011-12-12T21:28:52Z. 2022-03-29T20:39:37Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Maryland, Pennsylvania, and West Virginia.