Manganese prospect · Lake County, California
| State | California |
| County | Lake |
| Coordinates | 39.11177, -122.94328 |
| Tertiary | Manganese |
| Status | Prospect |
| Type | Surface |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10139024 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Rainbow Ledge | 0.3 mi | Occurrence | |
| Poe | 0.9 mi | Copper | Occurrence |
| Poe | 1.1 mi | Copper | Unknown |
| Unnamed Location near Upper Lake, CA | 2.7 mi | Stone, Crushed/Broken | Occurrence |
| Konocti Pit and Mill | 2.8 mi | Stone | Producer |
| Unknown near Upper Lake, CA | 2.8 mi | Stone, Crushed/Broken | Occurrence |
| Phillips | 2.9 mi | Manganese | Producer |
| Phillips | 3.1 mi | Past Producer | |
| Middle Creek Pit and Mill | 3.3 mi | Sand and Gravel, Construction | Producer |
| Middle Creek Facility | 3.8 mi | Sand, Industrial NEC | Abandoned |
| Scotts Creek Bar | 4.5 mi | Sand and Gravel, Construction | Producer |
| Ace Pit and Mill | 5.4 mi | Sand and Gravel, Construction | Past Producer |
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.