1991. Schmidt, James J. Includes location map. Scale approximately 1:62,500 Relief shown by contours and spot heights. by James J. Schmidt ; Robert L. Stewart, cartographe... Ohio. Division of Water.
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1986. Schmidt, James J. Relief shown by contours and spot heights. by James J. Schmidt ; cartography, David S. Orr. Scale 1:62,500 "Total copies printed: 500." Includes lo... Ohio. Department of Natural Resources.
1990. Schmidt, James J. Includes location map. "Total copies printed: 500." by James J. Schmidt ; Robert L. Stewart, cartographer. Relief shown by contours and spot height... Ohio. Division of Water.