Manganese occurrence · Humboldt County, California
discovered 1942
Drawn as a mineral occurrence: a place where a geologist noted the mineral, with no mining recorded. The ore color stands for manganese. 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 | Humboldt |
| Coordinates | 40.92064, -123.71193 |
| Tertiary | Manganese |
| Status | Occurrence |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10163241 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Leaning Tree No. 2 | 0.3 mi | Occurrence | |
| Unknown near Willow Creek, CA | 1.1 mi | Gold | Producer |
| East Form Campground | 1.1 mi | Gold | Unknown |
| Three Creeks Limestone | 1.5 mi | Limestone, Dimension | Occurrence |
| Willow Creek Quarry | 1.9 mi | Stone, Crushed/Broken | Producer |
| Whites Mine | 2.2 mi | Gold | Occurrence |
| Whites Mine | 2.2 mi | Gold | Occurrence |
| R Brown & Son's Quarry | 2.7 mi | Crushed, Broken Stone NEC | Intermittent |
| Lupton Claim | 2.8 mi | Gold | Occurrence |
| Moore Morris? Claim | 3.0 mi | Gold | Occurrence |
| Moore Claim | 3.0 mi | Gold | Occurrence |
| Brannon Mountain Pit | 3.1 mi | Sand and Gravel, Construction | 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.