USDW - Contours (1)
| Contours |
USDW - Boundaries (2)
| Black Hand Ss/Sharon ss freshwater/saltwater interface |
| Berea Ss freshwater/saltwater interface |
| Transition line between Sharon ss and Black Hand Ss |
| Northern limit of Black Hand Ss |
USDW - Devonian Outcrop (3)
USDW - Areas (4)
| Berea Sandstone |
| Black Hand Sandstone |
| Black Hand Sandstone absent |
| Lockport Dolomite |
| Not mapped |
| Sharon Sandstone or deepest sandstone unit above the Berea Sandstone |
| <all other values> |
|
