USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Calaveras County
Unconfirmed Gold Mixed Underground / Surface
Mindat locality description
A former lode Au mine located in sec. 15, T5N, R13E, MDM, about 7.3 km N of Mountain Ranch (3 miles S of Railroad Flat). Operated prior to, and during, 1917. MRDS database stated accuracy for this location is 500 meters. Mineralization is hosted in …
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.
Source records document both underground and surface mining.
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: 75459
Supports:
A Mindat locality match does not by itself establish underground workings.
California · Calaveras County
Unconfirmed Gold Past Producer Underground
Documented adit evidence
California · Calaveras County
Unconfirmed Gold Past Producer Underground
California · Calaveras County
Unconfirmed Gold Past Producer Underground
Documented shaft evidence
California · Calaveras County
Unconfirmed Gold Past Producer Underground
Historical mapped workings available