USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · El Dorado County
Cambrian
Unconfirmed Copper Underground
Key facts
- State
- California
- County
- El Dorado
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former Cu-Au mine located in sec. 23, T11N, R9E, MDM, 2.7 km (1.7 miles) NNW of Four Corners (3 miles W of Coloma), on private land. Operated by L. D. Stodick, et al. Operated in the 1850's, 1900 & 1908. MRDS database stated accuracy for this locatio…
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- USGS MRDS working type: Underground
- MRDS work_type documents underground workings: Underground · work_type
Verification
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
Why it's listed
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Past Producer
Operators / organizations
- L. D. Stodick, Et Al. · Historical operator
Commodities & minerals
Reported minerals
- Chalcopyrite
- Copper
- Gold
- Malachite
- Chalcopyrite
- Malachite
- Native Copper
- Native Gold
View all 9 reported minerals
- Chalcopyrite
- Copper
- Gold
- Malachite
- Chalcopyrite
- Malachite
- Native Copper
- Native Gold
- Talc
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: 77401
Supports:
- locality identity
- reported minerals (5)
A Mindat locality match does not by itself establish underground workings.
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Historical mapped workings available