Helmke Occurrence
Past ProducerChromiumUSGS MRDS
Location
| State | California |
| County | Butte |
| Coordinates | 39.80265, -121.62162 |
Commodities
| Primary | Chromium |
Mine Details
| Status | Past Producer |
| Data Source | USGS MRDS |
| Source ID | 10028401 |
| State | California |
| County | Butte |
| Coordinates | 39.80265, -121.62162 |
| Primary | Chromium |
| Status | Past Producer |
| Data Source | USGS MRDS |
| Source ID | 10028401 |