Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Monongahela Group  | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Monongahela Group | |
| RT | Virginia |
| Ohio | |
| Pennsylvania | |
| Maryland | |
| West Virginia | |
| Pittsburgh Coal | |
| SN | In Pennsylvania, contains Pittsburgh Coal Seam at base; top of Waynesburg Coal marks upper boundary. W Maryland, E Ohio, W Pennsylvania, W Virginia, and West Virginia. |