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| Cook Mountain Formation | |
|---|---|
| Stratigraphic range: Paleogene | |
|    Gastropoda fossils from the Cook Mountain Formation  | |
| Type | Formation | 
| Underlies | Cockfield Formation | 
| Overlies | Sparta Formation | 
| Location | |
| Region | Alabama, Louisiana, Mississippi, Texas | 
| Country | United States | 
| Type section | |
| Named for | Cook Mountain, Houston County, Texas | 
| Named by | William Kennedy [1] | 
The Cook Mountain Formation is a geologic formation in Alabama. It preserves fossils dating back to the Paleogene period.