| Lat / long: | 39.38783, -76.97107 |
| Tertiary: | Iron, Copper |
| Operation type: | Underground |
| Development status: | Past Producer |
| First production started: | 1840 |
| MAS | 240130008 |
| DEP | 10145941 |
| 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. 41-45, 54-55.} |
| Reporter | Brocoum, A. |