Grant Lake Formation

Grant Lake Formation
Stratigraphic range: Late Ordovician
Grant Lake Formation exposed in Boone County, Kentucky.
TypeFormation
UnderliesArnheim Formation and Bull Fork Formation
OverliesFairview Formation
Location
RegionOhio, Kentucky
CountryUnited States

The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.