| Corryville Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Corryville Formation (Upper Ordovician, Katian) exposed in Maysville, Kentucky. | |
| Type | Formation |
| Location | |
| Region | Ohio, Kentucky |
| Country | United States |
The Corryville Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.