Manganese occurrence · Riverside County, California
| State | California |
| County | Riverside |
| Coordinates | 33.82475, -114.80390 |
| Primary | Manganese |
| Status | Occurrence |
| Data Source | USGS MRDS |
| Source ID | 10285854 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Langdon Mine | 0.3 mi | Past Producer | |
| Western States Stone Quarry | 0.3 mi | Limestone, General | Producer |
| Little Maria Mountains Wollastonit | 0.7 mi | Wollastonite | Unknown |
| Unnamed Wollastonite Occurrence near Blythe, CA | 1.1 mi | Wollastonite | Occurrence |
| Arentz-Perkins | 1.2 mi | Manganese | Unknown |
| Langdon Deposit | 1.2 mi | Manganese | Producer |
| Allen Placers | 1.9 mi | Gold | Unknown |
| Mountain King | 2.7 mi | Occurrence | |
| Mountain King | 2.8 mi | Copper | Unknown |
| Brown Mine | 3.0 mi | Lead | Prospect |
| Garbutt & Orcutt Deposit | 3.2 mi | Gypsum-Anhydrite | Past Producer |
| The Standard Mine | 3.4 mi | Gypsum | Active |
This location is classified as a mineral prospect or occurrence — a site where minerals have been identified but no significant mining has taken place. These sites typically have minimal environmental impact but indicate the presence of mineral deposits in the area.