| Ellsworth Shale | |
|---|---|
| Stratigraphic range: Late Devonian | |
| Type | Formation | 
| Underlies | Sunbury Shale | 
| Overlies | Antrim Shale | 
| Location | |
| Region | Indiana and Michigan | 
| Country | United States | 
The Ellsworth Shale is a geologic formation in Michigan. It preserves fossils dating back to the Devonian period.