USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Alpine County
Unconfirmed Copper Underground
Mindat locality description
A former Cu mine located in sec. 31 (& 29 ?), T10N, R21E, MDM, 0.6 km (1,900 feet) NW of Colorado Hill (coordinates of record), on National Forest land. Active in 1884. MRDS database stated accuracy for this location is 1,000 meters. Local rocks inc…
USGS historical topographic mapping. Features may no longer exist.
Every underlying record used to build the summary above, for research/verification use.
Unconfirmed
Source records support underground workings, but UndergroundMines has not yet independently verified this mine.
USGS source data documents underground workings for this record.
No community field reports yet.
I Visited This MineType: Historical mine record
Supports:
Type: Historical mapped physical features
Dataset: DOI 10.5066/P9TAALR6
Supports:
Historical mapped features may no longer exist.
Type: Mineralogical locality database
Record: Mindat Locality: 74549
Supports:
A Mindat locality match does not by itself establish underground workings.
California · Alpine County
Unconfirmed Copper Past Producer