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 | 41.07653, -123.71424 |
| Tertiary | Manganese |
| Status | Occurrence |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10163179 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Sam Brown World War No. 2 Prospect | 0.3 mi | Occurrence | |
| Angel Ranch | 0.5 mi | Clay | Occurrence |
| Copper Bluff | 1.8 mi | Copper, Zinc | Occurrence |
| Hoopa Pit | 2.5 mi | Sand and Gravel, Construction | Producer |
| Copper Bluff | 2.7 mi | Copper | Past Producer |
| Rowland Pit and Mill | 3.1 mi | Sand and Gravel, Construction | Producer |
| Hoopa Valley Tribe Roads Department | 4.2 mi | Construction Sand and Gravel | Active |
| Rowland Pit & Mill | 4.8 mi | Sand and Gravel, Construction | Producer |
| Dungan | 5.2 mi | Gold | Past Producer |
| Sugar Bowl | 5.8 mi | Gold | Past Producer |
| Old County Pit | 6.1 mi | Sand and Gravel, Construction | Producer |
| Unknown near Weitchpec, CA | 6.2 mi | Gold | 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.