USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Humboldt County
Riley Extension
Unconfirmed Zinc Mixed Underground / Surface
Key facts
- State
- Nevada
- County
- Humboldt
- Mining district
- Potosi District
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Zinc
- Verification
- Unconfirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
A tungsten mine located in sec. 4, T38N, R42E, MDM. in skarn. This mine is about 1.4km to the north of the Reilly mine. They are spelled differently.
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 1 shaft symbol
- 2 adit symbols
View individual source records (3)
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
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Surface-Underground · oper_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: Past Producer
Commodities & minerals
Reported minerals
- Bismuthinite
- Chalcopyrite
- commodity:Copper
- commodity:Lead
- commodity:Tungsten
- commodity:Zinc
- Diopside
- Epidote
View all 18 reported minerals
- Bismuthinite
- Chalcopyrite
- commodity:Copper
- commodity:Lead
- commodity:Tungsten
- commodity:Zinc
- Diopside
- Epidote
- Galena
- Garnet
- Garnet Group
- Molybdenite
- Powellite
- Pyrite
- Quartz
- Scheelite
- Sphalerite
- Wollastonite
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 (1)
- mapped adit symbols (2)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 19702
Supports:
- locality identity
- reported minerals (17)
A Mindat locality match does not by itself establish underground workings.
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Documented shaft evidence
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Documented adit evidence
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Historical mapped workings available