Williamstown, NJ Mines
Mines in Williamstown, New Jersey
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Piersons Pit | Piersons Gravel Pit | Private | Sand and Gravel | |
| Sicklerville Pit | Dun-Rite Sand And Gravel | Private | Sand and Gravel | |
| Sicklerville Pit and Mill | Sand and Gravel |