USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Mariposa County
Black Oak
Unconfirmed Gold Mixed Underground / Surface
Key facts
- State
- California
- County
- Mariposa
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Gold
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Au-Ag-Cu mine located in sec. 8, T5S, R20E, MDM, 2.5 km (8,300 feet) ESE of Darrah, in the headwaters area of Fox Creek, on National Forest land. The property consisted of an unpatented claim in 1927. Operated by M. Kane Golden Opportunity Inc…
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- Derived from MRDS oper_type (existing operation): Surface-Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Surface-Underground · oper_type
Verification
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
Why it's listed
Source records document both underground and surface mining.
History & operations
Historical record
- Development status: Past Producer
Commodities & minerals
Reported minerals
- Native Gold
- Quartz
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 82000
Supports:
- locality identity
- reported minerals (2)
A Mindat locality match does not by itself establish underground workings.
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