USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Mineral County
Blue Sphinx Property
Unconfirmed Gold Mixed Underground / Surface
Key facts
- State
- Nevada
- County
- Mineral
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Gold
- Verification
- Unconfirmed
Also known as
- Bovard - Rand Property, Blue Sphinx Mine, Bovard Mine, Golden Pen Mine
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Structure: The area is structurally complex, with dominantly NW- to WNW- trending high angle faults, down to the north. In the western part of the district, faults appear antithetic, having their upthrown sides to the south A NW-trending fault offsets …
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 1 shaft symbol
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): Surface-Underground
- 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
Operators / organizations
- 3 separate landowners · Historical operator
- Gold Summit (lessees) · Source-reported owner · 2006
Commodities & minerals
Reported minerals
- Adularia
- Alunite
- Kaolin
- Quartz
- Sericite
- Alunite
- Argentite
- Cerargyrite
View all 40 reported minerals
- Adularia
- Alunite
- Kaolin
- Quartz
- Sericite
- Alunite
- Argentite
- Cerargyrite
- Cerussite
- Chalcopyrite
- Chrysocolla
- Electrum
- Galena
- Gold
- Jarosite
- Malachite
- Silver
- Wulfenite
- Acanthite
- Adularia
- Alunite
- Andesite
- Cerussite
- Chalcopyrite
- Chlorargyrite
- Chrysocolla
- commodity:Copper
- commodity:Gold
- commodity:Iron
- commodity:Lead
- commodity:Manganese
- commodity:Molybdenum
- commodity:Silver
- commodity:Zinc
- Diorite
- Electrum
- Galena
- Granodiorite
- Jarosite
- K Feldspar
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)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 431562
Supports:
- locality identity
- reported minerals (22)
A Mindat locality match does not by itself establish underground workings.
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