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Start Over You searched for: Subject Pennsylvanian Geologic Period Remove constraint Subject: Pennsylvanian Geologic Period Year 1956 Remove constraint Year: 1956

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1956. 2018-06-13T20:11:15Z. 2018-06-13T20:11:15Z. Wilson, Charles William, 1905- cartographer. State of Tennessee, Dept. of Conservation, Division of Geology. English. cartographic image. Public. Appalachian Region, Cumberland Mountains, Appalachian Region., United States, and Cumberland Mountains. Pennsylvanian and From 280 to 310 million years ago.