Known and Probable Karst in Ohio
Map EG-1
2007
By Richard R. Pavey, Dennis N. Hull, C. Scott Brockman, Gregory A. Schumacher, David A. Stith, E. Mac Swinford, Terry L. Sole, Kim E. Vorbau, Kevin D. Kallini, Emily E. Evans, Ernie R. Slucher, and Robert G. Van Horn
GIS and Cartography by Donovan M. Powers
Last update March16, 2011
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