| Grant Lake Formation | |
|---|---|
| Stratigraphic range: Late Ordovician | |
 Grant Lake Formation exposed in Boone County, Kentucky. | |
| Type | Formation |
| Underlies | Arnheim Formation and Bull Fork Formation |
| Overlies | Fairview Formation |
| Location | |
| Region | 
Ohio
Kentucky |
| Country | 
United States |
The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
See also
- List of fossiliferous stratigraphic units in Ohio
- List of fossiliferous stratigraphic units in Kentucky
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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