Manganese prospect · Trinity County, California
discovered 1941
Drawn as a mine worked both from the surface and underground. The ore color stands for manganese. Federal records note the kind of operation and its status, not its depth or layout, so this is a typical example rather than a survey of this site.
| State | California |
| County | Trinity |
| Coordinates | 40.20065, -123.27971 |
| Tertiary | Manganese |
| Status | Prospect |
| Type | Surface-Underground |
| Discovery Year | 1941 |
| Data Source | USGS MRDS |
| Source ID | 10165771 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Lost Mine Deposit | 0.1 mi | Occurrence | |
| Double-A Prospect | 0.2 mi | Manganese | Producer |
| Double A.mine | 0.5 mi | Past Producer | |
| Barry Creek Mine | 0.6 mi | Past Producer | |
| Liberty Group | 1.2 mi | Manganese | Occurrence |
| Unnamed near Ruth, CA | 1.3 mi | Gold | Unknown |
| Armstrong No. 3 Prospect | 1.5 mi | Manganese | Prospect |
| Armstrong No. 1 Prospect | 1.5 mi | Occurrence | |
| Armstrong No. 2 Mine | 1.6 mi | Past Producer | |
| Armstrong No. 2 Prospect | 1.6 mi | Manganese | Occurrence |
| Armstrong No. 3 Prospect | 1.6 mi | Occurrence | |
| Mary Lue Claim | 3.3 mi | 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.