Records
245
Placer County Underground Mines
California · 245 underground-eligible records
Verified
1
Unconfirmed
244
With photos
0
Major commodities
- Gold · 203
- Chromium · 21
- Copper · 9
- Iron · 5
- Silver · 2
- Zirconium · 1
- Magnesite · 1
- Asbestos · 1
- Manganese · 1
- Lead · 1
Working types (source)
- Underground · 118
- Other / unspecified · 105
- Mixed Underground/Surface · 22
Related mining districts
- Ophir · 32
- Canada Hill · 12
- New England Mills · 11
- Damascus · 10
- Dutch Flat · 7
- Tahoe · 5
- Deadwood · 5
Mines in this county
Adams
California
Unconfirmed Gold
Alabama
California
Unconfirmed Gold
Documented shaft evidence
Algol Mine Argall?
California
Unconfirmed Copper
American Bar
California
Unconfirmed Gold
Auburn Pacific
California
Unconfirmed Gold
Documented shaft evidence
Baver
California
Unconfirmed Gold
Historical mapped workings available
Bazacoo
California
Unconfirmed Gold
Beauty Mine
California
Unconfirmed Gold
Documented adit evidence
Belle Union
California
Unconfirmed Gold
Documented adit evidence
Belvoir Mine
California
Unconfirmed Gold
Historical mapped workings available
Big Ben Cons.
California
Unconfirmed Gold
Big Blue
California
Unconfirmed Gold
Big Oak Tree Quartz
California
Unconfirmed Gold
Historical mapped workings available
Big Pine Mine
California
Unconfirmed Gold
Black Canyon
California
Unconfirmed Gold
Documented adit evidence
Black Oak
California
Unconfirmed Gold
Documented adit evidence
Blue Eagle Mine
California
Unconfirmed Gold
Historical mapped workings available
Blue Wing
California
Unconfirmed Gold
Bobtail Prospect
California
Unconfirmed Gold
Bonanza Mine
California
Unconfirmed Gold
Bonnie Bee
California
Unconfirmed Gold
Boulder
California
Unconfirmed Gold
Historical mapped workings available
Bree
California
Unconfirmed Gold
Historical mapped workings available
Buena Vista
California
Unconfirmed Gold
Historical mapped workings available
Exact protected coordinates are never shown on county pages. Report a page issue