Joan Number 4 Mine
Past ProducerUndergroundUSGS MRDS
Location
| State | Minnesota |
| County | Crow Wing |
| Coordinates | 46.51079, -94.02215 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Past Producer |
| Type | Underground |
| Discovery Year | 1920 |
| Data Source | USGS MRDS |
| Source ID | 10243393 |