| 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. [1]
John H. Peck assigned strata previously called the Arnheim, Waynesville, Liberty, and Whitewater Formations in Kentucky to the Bull Fork Formation. [2] [3]