Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Middle Run Formation  | |
|---|---|
| RT | Indiana |
| Kentucky | |
| Ohio | |
| Precambrian | |
| Proterozoic | |
| SN | May be Precambrian in age. In the East Continent Rift basin, Cincinnati Arch area of W Ohio, N central Kentucky and SE Indiana. Indexed with age as applicable. Added to Thesaurus in 1995. |