 | This article needs additional citations for verification. (June 2014) |
| Calloway Creek Formation | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation |
| Underlies | Ashlock Formation |
| Overlies | Garrard Siltstone |
| Location | |
| Region |  Kentucky |
| Country |  United States |
The Calloway Creek Formation is a geologic formation in Kentucky. It preserves fossils dating back to the Ordovician period.[1]