USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Humboldt County
Cahill Mine
Unconfirmed Mercury Underground
Key facts
- State
- Nevada
- County
- Humboldt
- Mining district
- Poverty Peak
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Mercury
- Verification
- Unconfirmed
Also known as
- Cahill, Sonoma Mine
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
An Hg occurrence/mine located in sec. 15(?), T40N, R40E. Structure: Reg. Struct: Thrust Fault, Folding; Reg. Trends: NNE Fault, parallel to sedimentary bedding. The fault is locally multiple and in places dies out only to reappear a few feet above…
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 14 adit symbols
View individual source records (2)
Every underlying record used to build the summary above, for research/verification use.
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Underground · oper_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
- Calcite
- Calomel
- Cinnabar
- commodity:Antimony
- commodity:Mercury
- Dolostone
- Eglestonite
- Gypsum
View all 13 reported minerals
- Calcite
- Calomel
- Cinnabar
- commodity:Antimony
- commodity:Mercury
- Dolostone
- Eglestonite
- Gypsum
- Montroydite
- Native Mercury
- Quartz
- Stibnite
- Terlinguaite
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 (14)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 3885
Supports:
- locality identity
- reported minerals (13)
A Mindat locality match does not by itself establish underground workings.
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Documented shaft/adit evidence
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Historical mapped workings available