| Lat / long: | 39.51253, -77.25388 |
| Tertiary: | Copper, Gold, Silver |
| Other material: | Bornite, Chalcocite, Chalcopyrite, Tetrahedrite |
| Discovery year: | 1750 |
| Operation type: | Surface-Underground |
| Development status: | Past Producer |
| First production started: | 1775 |
| MRDS | W017506 |
| MAS | 240210016 |
| DEP | 10291672 |
| Reference | {Deposit:: HEYL, A. V. AND N. C. PEARRE. COPPER, ZINC, LEAD, IRON, COBA}{Deposit:: BARITE DEPOSITS IN THE PIEDMONT UPLAND OF MARYLAND. MARYLAND}{Deposit:: SURVEY BULL. 28, 1965, PP. 5-8, 22-24, 31-32, 64.} |
| Reporter | Brocoum, A. |