Facts
- MSHA status
- Non-producing since Dec 21, 2016
- Type
- Underground
- County
- La Paz County
- State
- Arizona
- Land status (BLM data)
- State land
- Nearest town
- Quartzite
- Employees reported
- 4
- Operator
- Bonanza Explorations, Inc.
- Website
- miningamericas.gold
- Coordinates
- 33.8756, -114.2847
- MSHA mine ID
- 0203000
Source: MSHA Mines data set, retrieved 2026-10-13. Status and counts can lag real operations.
Land status comes from the BLM Surface Management Agency dataset and can be out of date. Check ownership before you go near any mine site.
History and geology (USGS)
- USGS site name
- Copperstone
- USGS status
- Past producer
- Commodities
- Gold, Silver, Barium-Barite
- Workings
- Surface
- Output size
- large (USGS class)
- Production years
- from 1987
- Discovered
- 1979
Matched by location to the USGS Mineral Resources Data System record 10056413 (retrieved 2026-10-13). The database was last updated around 2011, so history may be out of date.
Gold mines nearby
- Mesquite 72 mi · active
- Gold Road Mine 79 mi · active
- Vulture Mine 83 mi · intermittent
- Moss Mine 84 mi · active
- Rising Fawn 92 mi · active