1960. 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.
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1960. Schmidt, James J. Map side also contains legend and explanation of map symbols. Text includes information about generalized stratigraphic sequence of the rocks of th... Ohio. Division of Water.
1960. Schmidt, James J. Scale bar left right corner of map. Text includes information about generalized stratigraphic sequence of the rocks of the lower portion of the upp... Ohio. Division of Water.
1962. 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.
1960. 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. 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.
27. 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.
1962. 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.
1961. Schmidt, James J. Scale bar lower left corner of map. Text includes information about generalized stratigraphic sequence of the rocks in this portion of the middle S... Ohio. Division of Water.
1961. 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.