Underground mines
32
California · 32 underground-eligible mines · USGS MRDS district assignment
32
0
AUTHORITATIVE (USGS dep_id)
Mining district documented in USGS MRDS for underground-eligible catalog records.
California · Shasta County
Unconfirmed Copper Past Producer Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Past Producer Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Silver Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Mixed Underground/Surface
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Copper Occurrence Underground
California · Shasta County
Unconfirmed Silver Occurrence Underground
No district boundary polygons are shown. Membership is not inferred from map proximity.