| Lake Mathews Formation | |
|---|---|
| Stratigraphic range: Neogene | |
| Type | Formation |
| Location | |
| Region | Temescal Mountains, Riverside County, California |
| Country | United States |
The Lake Mathews Formation is a geologic formation in Riverside County, California.
It is located in the Lake Mathews reservoir area, in the Temescal Mountains.
The sedimentary formation preserves fossils dating back to the Neogene period.
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