O'connor Ranch Mine
Past ProducerSurface-UndergroundUSGS MRDS
Location
| State | California |
| County | San Luis Obispo |
| Coordinates | 35.29857, -120.72457 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Past Producer |
| Type | Surface-Underground |
| Discovery Year | 1917 |
| Data Source | USGS MRDS |
| Source ID | 10189283 |