| Oregon Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Underlies | Tyrone Limestone |
| Overlies | Camp Nelson Limestone |
| Location | |
| Region | Southeastern United States |
| Country | United States |
| Extent | Kentucky |
The Oregon Formation is a geologic formation in Kentucky. It dates back to the Ordovician period .
