Historic gold producers in Boundary County (USGS)
USGS records 11 historic gold producers in Boundary County: 10 past producers and 1 listed as a producer or plant. For 6 of them USGS gives an output size (6 small).
Show the 11 sites
| Site | USGS status | Output | Commodities | Years |
|---|---|---|---|---|
| Moyie Yaak District | Producer | small | Tungsten, Gold, Molybdenum, Lead, Silver | n/a |
| Miller Brothers Mine | Past producer | small | Lead, Silver, Zinc, Nickel, Copper, Gold, Sulfides | from 1937 |
| Regal Mine | Past producer | small | Gold, Silver, Lead, Zinc, Copper | from 1937 |
| American Girl Mine | Past producer | small | Silver, Lead, Copper, Molybdenum, Gold, Zinc | n/a |
| Cynide Gold Mining Property Mine | Past producer | small | Silver, Lead, Gold, Zinc, Copper | n/a |
| Tungsten Hill Mine | Past producer | small | Tungsten, Lead, Copper, Silver, Gold | n/a |
| Continental | Past producer | n/a | Silver, Lead, Gold, Copper, Zinc | from 1915 |
| Bethlehem Mine | Past producer | n/a | Lead, Copper, Zinc, Gold, Silver, Tungsten, Sulfur | n/a |
| Idamont Property | Past producer | n/a | Gold, Lead, Silver, Zinc | n/a |
| Leonia | Past producer | n/a | Uranium, Gold | n/a |
| Queen Mine | Past producer | n/a | Copper, Gold, Lead, Zinc, Silver | n/a |
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.
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