Silica, Manganese past producer · Lake County, California
| State | California |
| County | Lake |
| Coordinates | 39.44627, -122.97829 |
| Tertiary | Silica, Manganese |
| Status | Past Producer |
| Type | Surface-Underground |
| First Production | 1942 |
| Discovery Year | 1918 |
| Data Source | USGS MRDS |
| Source ID | 10139161 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Gravelly Valley | 0.3 mi | Manganese | Producer |
| Soda Spring | 2.3 mi | Geothermal | Occurrence |
| Soda Creek Bar | 2.4 mi | Sand and Gravel, Construction | Producer |
| Bull Mountain Lode | 2.7 mi | Chromium | Occurrence |
| Cartwright Manganese Prospect | 3.1 mi | Manganese | Occurrence |
| Hull Mountain Lodge | 3.2 mi | Chromium | Unknown |
| Unknown near Potter Valley, CA | 3.3 mi | Chromium | Occurrence |
| Unnamed Location near Potter Valley, CA | 4.0 mi | Chromium | Occurrence |
| Unnamed Location near Potter Valley, CA | 4.0 mi | Mercury | Unknown |
| Unknown near Potter Valley, CA | 4.1 mi | Chromium | Occurrence |
| Cabbago Send | 4.5 mi | Chromium | Unknown |
| Cabbage Head Or Fir Root Ridge Claim | 4.9 mi | Chromium | 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.