USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Elko County
Monarch
Source Corroborated Tungsten Underground 4 mapped adits
Key facts
- State
- Nevada
- County
- Elko
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Tungsten
- Verification
- Source Corroborated
Also known as
- Thelma, Big Fault
Mine Location
Approximate AreaDocumented underground workings
-
Adit
— documented in 2 source records.
USGS Historical Topographic Mine Features
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 4 adit symbols
- Adit : Spruce Mountain , 1953
- Adit : Spruce Mountain , 1986
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. -
Adit
Mapped on historical USGS topographic data (Adit). Historical map features may no longer exist in the field.
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): 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
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Past Producer
Commodities & minerals
Reported minerals
- Baryte
- Calcite
- commodity:Copper
- commodity:Gold
- commodity:Lead
- commodity:Silver
- commodity:Zinc
- Galena
View all 17 reported minerals
- Baryte
- Calcite
- commodity:Copper
- commodity:Gold
- commodity:Lead
- commodity:Silver
- commodity:Zinc
- Galena
- Hemimorphite
- Jarosite
- Limestone
- Limonite
- Native Gold
- Pyrite
- Quartz
- Scheelite
- Wad
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 (4)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 41397
Supports:
- locality identity
- reported minerals (17)
A Mindat locality match does not by itself establish underground workings.
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Documented shaft/adit evidence
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Lakeview
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Historical mapped workings available