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Start Over Subject Water-supply Creator Walker, Alfred C. Bounding Box -180 -89.81531 180 89.456192

1. Ground-water resources of Erie County

Maps The Ohio State University Public content
1986. Walker, Alfred C. "Total copies printed: 500." by Alfred C. Walker ; cartography, by David S. Orr. Scale 1:62,500 Relief shown by contours and spot heights. Includes... Ohio. Department of Natural Resources.

3. Ground-water resources of Clermont County

Maps The Ohio State University Public content
1986. Walker, Alfred C. by Alfred C. Walker ; cartography, David S. Orr. "Total copies printed: 500." Scale 1:62,500 Relief shown by contours and spot heights. Includes lo... Ohio. Department of Natural Resources.

4. Ground-water resources of Fulton County

Maps The Ohio State University Public content
1991. Walker, Alfred C. "2/91." "Total copies printed: 500." Scale approximately 1:62,500 Relief shown by contours and spot heights. by Alfred C. Walker ; Xiaoning Jiang, ... Ohio. Department of Natural Resources.

5. Ground-water resources of Hamilton County

Maps The Ohio State University Public content
1986. Walker, Alfred C. by Alfred C. Walker ; cartography, David S. Orr. Includes location map. Scale 1:62,500 Relief shown by contours and spot heights. "Total copies pri... Ohio. Department of Natural Resources.