Records
29
Sonoma County Underground Mines
California · 29 underground-eligible records
Verified
0
Unconfirmed
29
With photos
0
Major commodities
- Mercury · 23
- Copper · 3
- Chromium · 2
- Manganese · 1
Working types (source)
- Underground · 18
- Other / unspecified · 6
- Mixed Underground/Surface · 5
Related mining districts
- West Mayacmas · 16
Mines in this county
Last Chance and Young Denver
California
Unconfirmed Mercury Mixed Underground/Surface
Socrates
California
Unconfirmed Mercury Mixed Underground/Surface
Historical mapped workings available
Yellow Jacket
California
Unconfirmed Mercury
Historical mapped workings available
Guerneville
California
Unconfirmed Mercury Mixed Underground/Surface
Sonoma Chrome Inc
California
Unconfirmed Chromium Mixed Underground/Surface
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