USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Esmeralda County
Castle Prospect
Source Corroborated Gold 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
- Gold
- Verification
- Source Corroborated
Also known as
- Black Rock prospect, Berg prospect, Boss prospect
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Structure: northeast- and northwest-trending fault zones. Alteration: silicification of volcanics and sedimentary rocks. Commodity: Ore Materials: Gold, cinnabar Gangue Materials: chalcedony, jarosite, clays, pyrite, stibnite Deposit: Epithermal gol…
Additional documented workings
-
Adit
— documented in 1 source record.
USGS Historical Topographic Mine Features -
Shaft
— documented in 1 source record.
USGS Historical Topographic Mine Features
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 (4)
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. -
Shaft
Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field.
- 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
Source Corroborated
Additional historical source evidence corroborates this record. This is not a member field verification of current conditions.
Why it's listed
Source records document both underground and surface mining.
History & operations
Historical record
- Development status: Past Producer
Operators / organizations
- Seabridge Gold, Inc. · Historical operator · 2005
Commodities & minerals
Reported minerals
- Chalcedony
- Cinnabar
- Clay
- Gold
- Jarosite
- Pyrite
- Stibnite
- Andesite
View all 22 reported minerals
- Chalcedony
- Cinnabar
- Clay
- Gold
- Jarosite
- Pyrite
- Stibnite
- Andesite
- Chalcedony
- Cinnabar
- Clay
- commodity:Antimony
- commodity:Gold
- commodity:Mercury
- commodity:Silver
- Jarosite
- Native Gold
- Pyrite
- Quartz
- Rhyolite
- Stibnite
- Tuff
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: 428645
Supports:
- locality identity
- reported minerals (15)
A Mindat locality match does not by itself establish underground workings.
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