Records
10
Humboldt County Underground Mines
California · 10 underground-eligible records
Verified
0
Unconfirmed
10
With photos
0
Major commodities
- Stone · 3
- Gold · 3
- Manganese · 2
- Copper · 2
Working types (source)
- Other / unspecified · 8
- Underground · 1
- Mixed Underground/Surface · 1
Mines in this county
Horse Mountain
California
Unconfirmed Copper
Documented adit evidence
Copper Bluff
California
Unconfirmed Copper
Documented adit evidence
Orleans Placer
California
Unconfirmed Gold Mixed Underground/Surface
Charles Mountain Mine
California
Unconfirmed Manganese Mixed Underground/Surface
Chilton
California
Unconfirmed Gold Mixed Underground/Surface
Fort Seward Mine
California
Unconfirmed Manganese Mixed Underground/Surface
Liberty
California
Unconfirmed Gold Mixed Underground/Surface
Historical mapped workings available
Mcclellan Deposit
California
Unconfirmed Stone Mixed Underground/Surface
Rickter Deposit
California
Unconfirmed Stone Mixed Underground/Surface
Unnamed Limestone
California
Unconfirmed Stone Mixed Underground/Surface
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