Underground mines
20
East Mayacmas Mining District
California · 20 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
Aetna
California · Napa County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Documented adit evidence
Aetna Extension
California · Napa County
Unconfirmed Mercury Occurrence Mixed Underground/Surface
Historical mapped workings available
Anderson Springs
California · Lake County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Historical mapped workings available
Big Injun
California · Lake County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Bullion
California · Lake County
Unconfirmed Mercury Past Producer Underground
Chicago
California · Lake County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Corona
California · Napa County
Unconfirmed Mercury Producer Mixed Underground/Surface
Documented adit evidence
Granada
California · Napa County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Great Western
California · Lake County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Helen
California · Lake County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Ivanhoe
California · Napa County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Kellett
California · Napa County
Unconfirmed Mercury Past Producer Mixed Underground/Surface
Documented adit evidence
Mirabel Mine
California · Lake County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Oat Hill Mine
California · Napa County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Otto - Bullion
California · Lake County
Unconfirmed Mercury Past Producer Underground
Plymouth
California · Lake County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Research
California · Lake County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Twin Peaks
California · Napa County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Valley
California · Napa County
Unconfirmed Mercury Past Producer Underground
Historical mapped workings available
Wall Street
California · Lake County
Unconfirmed Mercury Past Producer Underground
Documented adit evidence
Related districts
- Grass Valley · 63
- Nevada City · 39
- Ophir · 32
- East Shasta Copper-Zinc · 32
- French Gulch · 24
- New Almaden · 20
- West Shasta Copper-Zinc · 20
- Mother Lode Belt · 19
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.