USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Placer County
Unconfirmed Gold Underground
Mindat locality description
A former lode Au occurrence/mine located in the NW¼ (estimated) sec. 20, T12N, R8E, MDM, 1.8 km (1.1 miles) SSE of Ophir, N of Dutch Ravine, between Interstate highway 80 & the Southern Pacific Railroad (1½ miles E of Newcastle), on private (patented) …
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: Mineralogical locality database
Record: Mindat Locality: 85715
Supports:
A Mindat locality match does not by itself establish underground workings.
California · Placer County
Unconfirmed Gold Past Producer Underground
Documented shaft evidence
California · Placer County
Unconfirmed Gold Past Producer Mixed Underground/Surface
California · Placer County
Unconfirmed Gold Past Producer Underground
California · Placer County
Unconfirmed Gold Past Producer Underground
Historical mapped workings available