| Lat / long: | 38.67443, -75.82244 |
| Primary: | Iron |
| Operation type: | Surface |
| Development status: | Past Producer |
| MAS | 240190003 |
| DEP | 10194686 |
| Reference | {Deposit:: SINGEWALD, JR, J T, 1911, MD.G.S. VOL 9, PART 3, P. 230.}{Deposit:: FOR LOCATION SEE MAP ATTACHED TO FEDERALSBURG MINE,CAROLINE}{Deposit:: LISTED AS NO.85.}{Deposit:: PEARRE, NANCY C, 1961, USGS MIN INV RES MAP MR-12.} |
| Reporter | Eastern Field Operations Center (EFOC) |