Grant Lake Formation
The Grant Lake Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.
| 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 |
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