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
Region Ohio Kentucky
Country United States

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