Manganese prospect · Lake County, California
| State | California |
| County | Lake |
| Coordinates | 38.77548, -122.68637 |
| Tertiary | Manganese |
| Status | Prospect |
| Type | Surface |
| Discovery Year | 1917 |
| Data Source | USGS MRDS |
| Source ID | 10236475 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Herrick Prospect | 0.2 mi | Prospect | |
| Kims Yard Ii | 0.2 mi | Clay | Producer |
| Henrys Pit and Mill | 0.3 mi | Sand and Gravel, Construction | Producer |
| Middletown Pit and Mill | 0.3 mi | Sand and Gravel, Construction | Producer |
| Anderson Springs | 0.5 mi | Mercury | Past Producer |
| Spring Hill | 0.5 mi | Manganese | Unknown |
| Spring Hill | 0.6 mi | Occurrence | |
| Anderson Springs | 1.0 mi | Mercury | Unknown |
| Black Ranch | 1.0 mi | Limestone, Dimension | Occurrence |
| Big Chief | 1.0 mi | Mercury | Past Producer |
| Big Chief Mine | 1.0 mi | Mercury | Occurrence |
| Unnamed Location near Cobb, CA | 1.1 mi | Mercury | 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.