Manganese occurrence · Lake County, California
| State | California |
| County | Lake |
| Coordinates | 38.77178, -122.44047 |
| Tertiary | Manganese |
| Status | Occurrence |
| Discovery Year | 1918 |
| Data Source | USGS MRDS |
| Source ID | 10163516 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Rattlesnake | 0.0 mi | Occurrence | |
| Herman | 1.0 mi | Occurrence | |
| Smythe Or Herman Prospect | 1.1 mi | Chromium | Occurrence |
| Hermann Claims | 1.3 mi | Prospect | |
| Herman Prospect | 1.3 mi | Chromium | Occurrence |
| Unknown near Hidden Valley Lake, CA | 1.5 mi | Mercury | Occurrence |
| Unknown near Hidden Valley Lake, CA | 2.3 mi | Chromium | Occurrence |
| Unnamed Location near Hidden Valley Lake, CA | 2.7 mi | Chromium | Prospect |
| Northern Light | 3.0 mi | Mercury | Unknown |
| Black Hawk Claim | 3.0 mi | Chromium | Occurrence |
| Unknown near Hidden Valley Lake, CA | 3.1 mi | Chromium | Occurrence |
| Unnamed Location near Hidden Valley Lake, CA | 3.1 mi | Chromium | 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.