Walker, Alfred C.Scale approximately 1:63,000.by Alfred C. Walker ; Xiaoning Jiang, cartographer.TIFFhttps://hdl.handle.net/1811/a77776c4-2eee-41be-83c0-19cb842dba35engPublicWater-supplyGroundwaterGround water resources of Carroll CountyMapsOhio--Carroll CountyOhioThe Ohio State University