Manganese, Silica past producer · Trinity County, California
discovered 1917
Drawn as a mine worked both from the surface and underground. The ore color stands for manganese, silica. 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 | 40.29125, -123.10671 |
| Tertiary | Manganese, Silica |
| Status | Past Producer |
| Type | Surface-Underground |
| Discovery Year | 1917 |
| Data Source | USGS MRDS |
| Source ID | 10287868 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Lucky Bill Prospect | 0.0 mi | Occurrence | |
| Evalina | 1.2 mi | Past Producer | |
| Evalina Occurrenco | 1.2 mi | Chromium | Past Producer |
| Spider Mine | 1.7 mi | Prospect | |
| Cauldwell Manganese Property | 2.0 mi | Manganese | Unknown |
| Sylvester-Wilson Claim | 2.0 mi | Prospect | |
| Prospect Creek | 2.1 mi | Limestone, Dimension | Unknown |
| Wilson-Sylvester Claim | 2.1 mi | Occurrence | |
| Spider Prospect | 2.1 mi | Occurrence | |
| Murphy-Bramlette Prospect | 2.1 mi | Occurrence | |
| Weed Prospect | 2.3 mi | Manganese | Occurrence |
| Black Hawk | 2.3 mi | Manganese | 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.