Map of the Berea sand of southern West Virginia
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Oil and Gas Investigation Map↗
Geology topics
C.W. Merrels
Publications and source records attributed to C.W. Merrels.
Map of the Berea sand of southeastern Ohio, northern West Virginia, and southwestern Pennsylvania
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Oil and Gas Investigation Map↗
Map of the Second Berea sand in Gallia, Meigs, Athens, Morgan, and Muskingum Counties, Ohio
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Oil and Gas Investigation Map↗