Historic gold producers in Coos County (USGS)
USGS records 4 historic gold producers in Coos County: 4 past producers and 0 listed as producers or plants. For 2 of them USGS gives an output size (2 small).
Show the 4 sites
| Site | USGS status | Output | Commodities | Years |
|---|---|---|---|---|
| Indian Stream Placers | Past producer | small | Gold | n/a |
| Milan Mine | Past producer | small | Copper, Zinc, Lead, Silver, Gold | n/a |
| Dalton Mine | Past producer | n/a | Gold, Copper | n/a |
| Milan Mine | Past producer | n/a | Aluminum, Sulfur-Pyrite, Copper, Silver, Lead, Silica, Zinc, Gold | found 1870 |
Source: USGS Mineral Resources Data System (retrieved 2026-10-13). The database was last updated around 2011, positions can be approximate and "producer" does not mean a mine is operating today. Sites already matched to an MSHA record are shown in the MSHA tables.