| 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 .
References
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