Ohio Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Upper Devonian
 .....Ohio Shale
RTKentucky
 Ohio
 West Virginia
 Cleveland Member
 Huron Member
SNIncludes Cleveland Member, Huron Member, Chagrin Member. Ohio, N central Kentucky, and West Virginia.