USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · El Dorado County
Mcdonald and Buys
Unconfirmed Chromium Mixed Underground / Surface
Key facts
- State
- California
- County
- El Dorado
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Chromium
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A Cr occurrence/mine located in the NW¼ sec. 6, T10N, R10E, MDM, 3.9 km (2.4 miles) W of Cold Springs, N side of Weber Creek (located claim). Operated by McDonald and Buys during WWI. Operated by Nick J. Schubin, et al (timeframe unknown). MRDS databa…
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
- Chromite
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: 77911
Supports:
- locality identity
- reported minerals (1)
A Mindat locality match does not by itself establish underground workings.
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Documented adit evidence
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Historical mapped workings available