| Jordan Sandstone | |
|---|---|
| Stratigraphic range: Cambrian | |
 Outcrop of the Jordan Sandstone in Wisconsin | |
| Type | Formation |
| Underlies | Oneota Dolomite |
| Overlies | St. Lawrence Formation |
| Location | |
| Region | Illinois, Minnesota, and Wisconsin |
| Country |  United States |
The Jordan Sandstone is a geologic formation in Wisconsin. It preserves fossils dating back to the Cambrian period.