| Forest Hill Formation | |
|---|---|
| Stratigraphic range: [1] | |
| The Forest Hill formation at the Mississippi Petrified Forest | |
| Type | Formation |
| Location | |
| Region | Mississippi |
| Country | United States |
The Forest Hill Formation is a geologic formation in Mississippi. It preserves fossils dating back to the Oligocene period, most notably a petrified forest, the Mississippi Petrified Forest. [2] It is composed of loess, fine sand and clay, and some lignite coal. [1]