Manganese occurrence · Riverside County, California
| State | California |
| County | Riverside |
| Coordinates | 34.02675, -114.52500 |
| Primary | Manganese |
| Tertiary | Copper, Silver |
| Status | Occurrence |
| Data Source | USGS MRDS |
| Source ID | 10116194 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Riverside Mts. Manganese Deposit | 0.3 mi | Manganese | Occurrence |
| Unnamed Prospect near Poston, AZ | 0.4 mi | Copper | Occurrence |
| Gold Rice Mine | 0.5 mi | Gold | Prospect |
| Minnie Prospect | 0.6 mi | Manganese | Occurrence |
| Nelson Prospect | 0.6 mi | Gold | Occurrence |
| Undetermined Occurrence | 0.6 mi | Iron | Occurrence |
| Unnamed Prospect near Poston, AZ | 0.7 mi | Gold | Occurrence |
| Unnamed Prospect near Poston, AZ | 0.7 mi | Gold | Occurrence |
| Little Girl Prospects | 0.8 mi | Gold | Occurrence |
| Colombo | 0.8 mi | Gold | Occurrence |
| North Star Prospect | 0.9 mi | Gold | Occurrence |
| Unnamed Prospect near Poston, AZ | 0.9 mi | Gold | Occurrence |
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.