| Cedar Valley Group | |
|---|---|
| Stratigraphic range: Devonian | |
| Type | Group |
| Overlies | Wapsipinicon Group |
| Location | |
| Region | Iowa and Illinois |
| Country | United States |
The Cedar Valley Group is a geologic group in Iowa and Illinois. It preserves fossils dating back to the Devonian period.
 | This article about a specific stratigraphic formation in Illinois is a stub. You can help Wikipedia by expanding it. |
