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.
1959. Schmidt, James J. Scale bar lower right corner of map. Map side also contains legend and explanation of map symbols. Text includes information about generalized stra... Ohio. Division of Water.
11. Map of the Little Muskingum River and Duck Creek Basins showing availability of underground water
1959. Schmidt, James J. Text includes information about generalized stratigraphic sequence of the rocks in the Little Muskingum River and Duck Creek Basins and quality of ... Ohio. Division of Water.
1959. Schmidt, James J. Scale bar lower left corner of map. Map side also contains legend and explanation of map symbols. Text includes information about generalized strat... Ohio. Division of Water.
1959. Schmidt, James J. Scale bar lower left corner of map. "Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water" Map side also contains legend and explanation... Ohio. Division of Water.
1959. Schmidt, James J. Text includes information about generalized stratigraphic sequence of the rocks in the Short Creek and Wheeling Creek Basins and quality of undergr... Ohio. Division of Water.
15. 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.
1959. Schmidt, James J. Map side also contains legend and explanation of map symbols. Scale bar lower right corner of map. "Prepared by JAMES J. SCHMIDT, Geologist, Ohio D... Ohio. Division of Water.
1959. Walker, Alfred C. Text includes information about generalized stratigraphic sequence of the rocks in the Tiffin Basin and the quality of underground water. Map side ... Ohio. Division of 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, from data compiled ... 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.