USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
California · Yuba County
Horse Shoe
Unconfirmed Gold Underground
Key facts
- State
- California
- County
- Yuba
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Gold
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A former lode Au-Cu-Pb-Ag mine located in sec. 20, T19N, R7E, MDM, 1.2 km (4,000 feet) E of Challenge, on National Forest land. MRDS database stated accuracy for this location is 500 meters. Mineralization is a vein deposit hosted in schist. The ore…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 2 adit symbols
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
Commodities & minerals
Reported minerals
- Quartz
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
USGS Historical Topographic Mine Features
Type: Historical mapped physical features
Dataset: DOI 10.5066/P9TAALR6
Supports:
- mapped adit symbols (2)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 98544
Supports:
- locality identity
A Mindat locality match does not by itself establish underground workings.