Stratigraphic Framework of Cambrian and Ordovician Rocks in the Central Appalachian Basin From Fayette County, Ohio, to Botetourt County, Virginia

Robert T. Ryder, John E. Repetski, and Anita G. Harris,
1996,
U. S. Geological Survey Map Series I-2495

[ Cross-section | Stratigraphy | Explanation ]

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