1960. Pree, Henry L. (Henry Louis), 1917-. Text includes information about generalized stratigraphic sequence of the rocks in the lower portion of the Grand River Basin and the quality of un... Ohio. Division of Water.
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1960. Pree, Henry L. (Henry Louis), 1917-. 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.