Underground mines
8
Spenceville Mining District
California · 8 underground-eligible mines · USGS MRDS district assignment
Verified
0
Relationship confidence
AUTHORITATIVE (USGS dep_id)
District overview
Mining district documented in USGS MRDS for underground-eligible catalog records.
Major commodities
- Copper
- Gold
Mines in this district
California Mine
California · Nevada County
Unconfirmed Copper Occurrence Underground
Gautier Ranch
California · Nevada County
Unconfirmed Copper Occurrence Underground
Green Lead
California · Nevada County
Unconfirmed Copper Past Producer Underground
Lotzen Ranch
California · Nevada County
Unconfirmed Copper Occurrence Underground
Mineral Hill Group
California · Nevada County
Unconfirmed Copper Past Producer Underground
Pine Hill Mining Co
California · Nevada County
Unconfirmed Gold Past Producer Underground
Documented adit evidence
Spenceville
California · Nevada County
Unconfirmed Copper Past Producer Mixed Underground/Surface
Wetteran Ranch Watterson?
California · Nevada County
Unconfirmed Copper Occurrence Mixed Underground/Surface
Related districts
- Grass Valley · 63
- Nevada City · 39
- Ophir · 32
- East Shasta Copper-Zinc · 32
- French Gulch · 24
- New Almaden · 20
- East Mayacmas · 20
- West Shasta Copper-Zinc · 20
Sources
- USGS Mineral Resources Data System (MRDS) — District assignment from USGS MRDS Districts table joined by dep_id.
No district boundary polygons are shown. Membership is not inferred from map proximity.