| Crab Orchard Formation Stratigraphic range: Silurian |
|
|---|---|
| Type | Formation |
| Underlies | Bisher Formation |
| Overlies | Brassfield Formation |
| Location | |
| Region | Southeastern United States |
| Country | United States |
| Extent | Kentucky |
The Crab Orchard Formation is a geologic formation in Kentucky. It dates back to the Silurian period .