1962. Walker, Alfred C. Text includes information about generalized stratigraphic sequence of the rocks in the Lower Wills Creek Basin and quality of underground water. Sc... Ohio. Division of Water.
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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.
1958. Walker, Alfred C. Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water Map side also contains legend and explanation of map symbols. Text includes informa... Ohio. Division of Water.
334. Map of the middle portion of the Mahoning River Basin showing availability of underground water
1960. Cummins, James W. Scale bar lower left corner of map. Text includes information about generalized stratigraphic sequence of the rocks in the middle Mahoning River Ba... Ohio. Division of Water.
335. Map of the middle portion of the Sandusky River Basin showing availability of underground water
1962. Stein, Russell B. Prepared by RUSSELL B. STEIN, Geologist, Ohio Division of Water Map side also contains legend and explanation of map symbols. Scale bar lower right... Ohio. Division of Water.
336. Map of the Middle Tuscarawas River and Sugar Creek Basins showing availability of underground water
1962. Schmidt, James J. Scale bar lower left corner of map. Map side also contains legend and explanation of map symbols. "Prepared by JAMES J. SCHMIDT, Geologist, Ohio Di... Ohio. Division of Water.
1960. Schmidt, James J. Text includes information about generalized stratigraphic sequence of the exposed rocks and quality of underground water. Map side also contains le... 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.
1887. Allis, Edward P. (Edward Phelps),1824-1889, Beck & Pauli, lithographer., Case, J. M. (Julian M.), -1890, compiler, Longyear, John Munro, 1850-1922, compiler, and Merrell, H. B. (Harvey B.), publisher. Shows lands of Allis & Merrell in green, and of Case & Longyear in red. Also shows mines and mineral explorations, iron ranges, existing and projec...
1962. Walker, Alfred C. Prepared by ALFRED C. WALKER, Geologist, Ohio Division of Water Map side also contains legend and explanation of map symbols. Text includes informa... Ohio. Division of Water.