USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Humboldt County
NBMG Sample Site 491
Unconfirmed Barium-Barite Mixed Underground / Surface
Key facts
- State
- Nevada
- County
- Humboldt
- Mining district
- Golconda District
- Development status
- Occurrence
- Mine type
- Mixed underground / surface
- Primary commodity
- Barium-Barite
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Deposit: Oxide iron and copper minerals occur in shear zone. Limonite boxworks, malachite, and possibly other oxide copper minerals are present in material from a small pit. Sparse quartz vein matter is also present. This prospect may represent a diffe…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 9 shaft symbols
- 7 adit symbols
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- USGS MRDS working type: Surface/Underground
- MRDS work_type documents underground workings: Surface/Underground · work_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: Occurrence
Commodities & minerals
Reported minerals
- Barite
- Malachite
- Baryte
- commodity:Antimony
- commodity:Barite (Barytes)
- commodity:Copper
- commodity:Manganese
- Malachite
View all 9 reported minerals
- Barite
- Malachite
- Baryte
- commodity:Antimony
- commodity:Barite (Barytes)
- commodity:Copper
- commodity:Manganese
- Malachite
- Quartzite
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 shaft symbols (9)
- mapped adit symbols (7)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 430009
Supports:
- locality identity
- reported minerals (7)
A Mindat locality match does not by itself establish underground workings.
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