Stone Mines in Maryland
3Total Sites
2Active
Stone Mining in Maryland
Maryland has 3 stone-related mine and mineral deposit locations recorded in federal databases. Of these, 2 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Montgomery County | 2 |
| Carroll County | 1 |
Stone Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Stonyhurst Quarries | Montgomery | Surface | Producer |
| Union Bridge Quarry & Cement Plant | Carroll | Surface | Producer |
| Stonyhurst Quarries | Montgomery | Past Producer |