|Name||Detroit River Group and Columbus Limestone, Undivided|
Sedimentary > Carbonate > Dolostone (Bed)Dolomite, pale yellow-gray to light brown weather brown; thin to massive bedded; fine crystalline.
Unconsolidated > Coarse-detrital > Sandlocal quartz sand in lower portion
Slucher, E.R., (principal compiler), Swinford, E.M., Larsen, G.E., and others, with GIS production and cartography by Powers, D.M., 2006, Bedrock geologic map of Ohio: Ohio Division of Geological Survey Map BG-1, version 6.0, scale 1:500,000.
|Counties||Champaign - Logan|