Copper past producer · San Bernardino County, California
| State | California |
| County | San Bernardino |
| Coordinates | 34.29476, -114.48441 |
| Primary | Copper |
| Secondary | Silver, Gold |
| Status | Past Producer |
| Deposit Type | Vein |
| Data Source | USGS MRDS |
| Source ID | 10034038 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Unnamed Prospect near Big River, CA | 0.3 mi | Gold | Prospect |
| Unnamed Prospect near Big River, CA | 0.3 mi | Copper | Occurrence |
| D and W Mine | 0.3 mi | Copper | Past Producer |
| Unnamed Prospect near Big River, CA | 0.5 mi | Copper | Occurrence |
| Unnamed Prospect near Big River, CA | 0.5 mi | Copper | Prospect |
| Atkinson Group | 0.6 mi | Gold | Prospect |
| Unnamed Prospect near Big River, CA | 0.8 mi | Copper | Occurrence |
| American Eagle | 0.9 mi | Copper | Past Producer |
| New American Eagle Mine | 1.0 mi | Copper | Past Producer |
| Cascade Mine No. 2 | 1.2 mi | Gold | Prospect |
| Unnamed Prospect near Big River, CA | 1.2 mi | Gold | Prospect |
| Braintruster | 1.5 mi | Occurrence |
This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.