| Bill's Creek Shale | |
|---|---|
| Stratigraphic range: Middle Ordovician - Late Ordovician | |
| Type | Formation |
| Underlies | Stonington Formation |
| Overlies | Collingwood Shale |
| Location | |
| Region | Michigan |
| Country | United States |
The Bill's Creek Shale is a geologic formation in Michigan. It preserves fossils dating back to the Ordovician period.
