Bull Fork Formation

Bull Fork Formation Stratigraphic range: Ordovician
Bull Fork Formation exposed in southern Ohio
Type	Formation
Underlies	Drakes Formation
Overlies	Grant Lake Formation
Lithology
Primary	Limestone
Other	Shale
Location
Region	Ohio and Kentucky
Country	United States

The Bull Fork Formation is a geologic formation in north central Kentucky and southwestern Ohio. It preserves fossils dating back to the Ordovician period.