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Legend (DGS_Services/Karst_Geology_AGOL)

Karst - Known and indicated karst locations of Ohio (0)
Karst - Probable karst areas of Ohio (1)
Karst - Karst geology of Ohio (2)
Silurian- and Devonian-age carbonate bedrock overlain by less than 20 feet of glacial drift and/or alluvium Silurian- and Devonian-age carbonate bedrock overlain by less than 20 feet of glacial drift and/or alluvium
Silurian- and Devonian-age carbonate bedrock overlain by more than 20 feet of glacial drift and/or alluvium Silurian- and Devonian-age carbonate bedrock overlain by more than 20 feet of glacial drift and/or alluvium
Interbedded Ordovician-age limestone and shale overlain by less than 20 feet of glacial drift and/or alluvium Interbedded Ordovician-age limestone and shale overlain by less than 20 feet of glacial drift and/or alluvium
Interbedded Ordovician-age limestone and shale overlain by more than 20 feet of glacial drift and/or alluvium Interbedded Ordovician-age limestone and shale overlain by more than 20 feet of glacial drift and/or alluvium