Facts
- MSHA status
- Active since Sep 8, 2025
- Type
- Underground
- County
- Nevada County
- State
- California
- Land status (BLM data)
- Federal land in a US Forest Service national forest or grassland
- Nearest town
- Downieville
- Employees reported
- 2
- Operator
- Ruby Gold, Inc.
- Coordinates
- 39.5094, -120.8486
- MSHA mine ID
- 0403108
Source: MSHA Mines data set, retrieved 2026-10-13. Status and counts can lag real operations.
This location is mapped as federal land. Public land is not an invitation to enter a working mine or old workings. Ask the managing agency about access, claims and closures.
History and geology (USGS)
- USGS site name
- Uncle Sam Mine
- USGS status
- Past producer
- Commodities
- Gold, Silver
- Workings
- Surface/Underground
- Output size
- small (USGS class)
Matched by location to the USGS Mineral Resources Data System record 10103113 (retrieved 2026-10-13). The database was last updated around 2011, so history may be out of date.
Gold mines nearby
- Sixteen To One Mine 3 mi · non-producing
- Red Ledge Mine 11 mi · intermittent
- Big Seam mine 34 mi · active
- Spring Valley Mine 67 mi · active
- Lincoln Mine Project 76 mi · non-producing