Black Rock Group
Past ProducerManganeseUSGS MRDS
Location
| State | Arizona |
| County | Maricopa |
| Coordinates | 33.73950, -113.17687 |
Commodities
| Primary | Manganese |
Mine Details
| Status | Past Producer |
| Deposit Type | Replacement |
| Discovery Year | 1916 |
| Data Source | USGS MRDS |
| Source ID | 10027086 |