Cumberland Formation | |
Type: | Formation |
Age: | Ordovician |
Period: | Ordovician |
Region: | Southeastern United States |
Country: | United States |
Underlies: | Chattanooga Shale |
Overlies: | Leipers Limestone |
Extent: | Kentucky |
The Cumberland Formation is a geologic formation in Kentucky. It dates back to the Ordovician period .