Manganese past producer · Riverside County, California
| State | California |
| County | Riverside |
| Coordinates | 33.71084, -117.02806 |
| Primary | Manganese |
| Status | Past Producer |
| Type | Underground |
| Data Source | USGS MRDS |
| Source ID | 10236775 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Nichols Magnesite Deposit | 0.0 mi | Magnesite | Producer |
| Hemet Magnesite Mine | 1.0 mi | Magnesite | Prospect |
| Clark and Losekamp Deposit | 1.5 mi | Occurrence | |
| Clark and Losekamp Prospect | 1.5 mi | Occurrence | |
| Pit | 2.7 mi | Granite | Producer |
| Unnamed Pit near Green Acres, CA | 2.7 mi | Stone, Crushed/Broken | Past Producer |
| Unnamed Corundum Occurrence near Green Acres, CA | 2.8 mi | Corundum | Occurrence |
| Hemet Silica Mine | 3.8 mi | Silica | Past Producer |
| Machado Deposit | 4.1 mi | Feldspar | Prospect |
| Wm Shelton Prospect | 4.1 mi | Uranium | Occurrence |
| K & K Ranch | 4.6 mi | Feldspar | Occurrence |
| Twin Buttes No. 1 Mine | 5.2 mi | Gold | Prospect |
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.