Margaret Ann
Past ProducerSurface-UndergroundUSGS MRDS
Location
| State | Montana |
| County | Silver Bow |
| Coordinates | 46.03710, -112.54229 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Past Producer |
| Type | Surface-Underground |
| Discovery Year | 1878 |
| Data Source | USGS MRDS |
| Source ID | 10245651 |