USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Esmeralda County
Blue Bull Mine
Unconfirmed Gold Underground
Key facts
- State
- Nevada
- County
- Esmeralda
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Gold
- Verification
- Unconfirmed
Also known as
- Blue Bull, Hat Claims
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Structure: Caldera Ring Fracture Zone Alteration: Silicification Along Nw-Dipping Fissures; Kaolinization Deposit type: Epithermal quartz-alunite Au Development: 8 claims, 148 acres Rock formation(s): Milltown Andesite Ore(s): Caldera Ring Fractur…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 67 shaft symbols
- 6 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
Operators / organizations
- Reorganized Blue Bull Mining Co ; Goldfield Deep Mines Co. · Source-reported owner
Commodities & minerals
Reported minerals
- Alunite
- Kaolinite
- Limonite
- Quartz
- Famatinite
- Alunite
- Andesite
- commodity:Copper
View all 16 reported minerals
- Alunite
- Kaolinite
- Limonite
- Quartz
- Famatinite
- Alunite
- Andesite
- commodity:Copper
- commodity:Gold
- commodity:Silver
- Dacite
- Famatinite
- Kaolinite
- Limonite
- Natroalunite
- 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 shaft symbols (67)
- mapped adit symbols (6)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 64568
Supports:
- locality identity
- reported minerals (11)
A Mindat locality match does not by itself establish underground workings.
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