Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Richland County, Ohio to Rockingham County, Virginia

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Bibliographic Details
Main Author: Ryder, Robert T.
Corporate Author: Geological Survey (U.S.)
Other Authors: Crangle, Robert D., Jr.
Format: Government Document Electronic Map eBook
Published: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
Edition:Online version 1.0 /
Series:Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-2264.
Online Access:CONNECT