USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Esmeralda County
Castle Rock Mine
Mindat Confirmed Mercury Mixed Underground / Surface 3 mapped shafts 1 mapped adit
Key facts
- State
- Nevada
- County
- Esmeralda
- Development status
- Past Producer
- Mine type
- Mixed underground / surface
- Primary commodity
- Mercury
- Verification
- Mindat Confirmed
Also known as
- Howard Ground, Castle Rock Prospect.
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Deposit type: Hot-spring Hg Cinnabar occurs in the breccia vein in fractures and shears that cut the chalcedony. A small amount of stibnite occurs in a breccia zone in the slope above the mercury deposit. A short trench and adit SW of the shaft expl…
Additional documented workings
-
Adit
— documented in 2 source records.
USGS Historical Topographic Mine Features · Mindat -
Shaft
— documented in 2 source records.
USGS Historical Topographic Mine Features · Mindat
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 3 shaft symbols
- 1 adit symbol
- Shaft : Devils Gate , 1968
- Adit : Devils Gate , 1968
View individual source records (6)
Every underlying record used to build the summary above, for research/verification use.
-
Adit
Mapped on historical USGS topographic data (Adit). Historical map features may no longer exist in the field. -
Adit
Documented in Mindat locality data. Evidence: unt of stibnite occurs in a breccia zone in the slope above the mercury deposit. A short trench and adit SW of the shaft expl... -
Shaft
Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field. -
Shaft
Documented in Mindat locality data. Evidence: occurs in a breccia zone in the slope above the mercury deposit. A short trench and adit SW of the shaft expl...
- USGS MRDS working type: Surface/Underground
- MRDS work_type documents underground workings: Surface/Underground · work_type
Verification
Mindat Confirmed
Mindat locality corroborates underground workings.
Why confirmed?
Mindat locality corroborates underground workings.
Why it's listed
Source records document both underground and surface mining.
History & operations
Historical record
- Development status: Past Producer
Operators / organizations
- F. O. And H. L. Gilbert Of Luning And C. A. Hewdel And L. L. Sibley . F. V. Bovard Of Mina · Source-reported owner
Commodities & minerals
Reported minerals
- Chalcedony
- Jarosite
- Pyrite
- Cinnabar
- Stibnite
- Andesite
- Chalcedony
- Cinnabar
View all 17 reported minerals
- Chalcedony
- Jarosite
- Pyrite
- Cinnabar
- Stibnite
- Andesite
- Chalcedony
- Cinnabar
- Clay minerals
- commodity:Antimony
- commodity:Gold
- commodity:Mercury
- Jarosite
- Native Gold
- Pyrite
- Quartz
- Stibnite
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 (3)
- mapped adit symbols (1)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 60804
Supports:
- locality identity
- reported minerals (12)
- underground workings
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Documented adit evidence
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Documented shaft evidence
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