Conn Valley Prospect
OccurrenceUSGS MRDS
Location
| State | California |
| County | Napa |
| Coordinates | 38.48129, -122.38666 |
Commodities
| Tertiary | Manganese |
Mine Details
| Status | Occurrence |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10115716 |
| State | California |
| County | Napa |
| Coordinates | 38.48129, -122.38666 |
| Tertiary | Manganese |
| Status | Occurrence |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10115716 |