1959. Walker, Alfred C. Text includes information about generalized stratigraphic sequence of the rocks in the Blanchard Basin and quality of underground water. Map side a... Ohio. Division of Water.
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1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. Text includes information about generalized stratigraphic sequence of the rocks in th... Ohio. Division of Water.
1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. Text includes information about generalized stratigraphic sequence of the rocks in th... Ohio. Division of Water.
1959. Walker, Alfred C. Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water, from data compiled by Lawrence R. Brunstetter. Scale bar lower left corner. Text i... Ohio. Division of Water.
1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. Scale bar lower right corner. "Prepared by ALFRED C. WALKER, Geologist, Ohio Division... Ohio. Division of Water.
1959. Walker, Alfred C. Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water, from data compiled by Lawrence R. Brunstetter. Map side also contains legend and e... Ohio. Division of Water.
1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. Scale bar lower left corner. Text includes information about generalized stratigraphi... Ohio. Division of Water.
1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. Text includes information about generalized stratigraphic sequence of the rocks in th... Ohio. Division of Water.
1959. Walker, Alfred C. Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water, from data compiled by Lawrence R. Brunstetter. Scale bar lower right corner of map... Ohio. Division of Water.
10. Map of the Upper portion of the Tuscarawas River Basin showing availability of underground water
1959. Walker, Alfred C. Map side also contains legend and explanation of map symbols. "Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water" Scale bar lower lef... Ohio. Division of Water.
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