Underground mines
6
Pine Mountain Mining District
California · 6 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
- Mercury
Mines in this district
Buckeye
California · San Luis Obispo County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Hamilton
California · San Luis Obispo County
Unconfirmed Mercury Past Producer Underground
Keystone
California · San Luis Obispo County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Ocean View
California · San Luis Obispo County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Pine Mountain
California · San Luis Obispo County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Documented adit evidence
Quien Sabe
California · San Luis Obispo County
Unconfirmed Mercury Past Producer 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.