Oswego Formation
| Oswego Formation | |
|---|---|
| Stratigraphic range: Late Ordovician | |
| Type | Formation |
| Underlies | Tuscarora Sandstone |
| Overlies | Juniata Formation |
| Location | |
| Region | Appalachia and Southeastern United States |
| Country | United States |
| Extent | Virginia and West Virginia |
The Oswego Formation is a geologic formation in West Virginia. It dates back to the Ordovician period.