USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Nevada · Humboldt County
Blum Shaft
Mindat Confirmed Gold Mixed Underground / Surface
Key facts
- State
- Nevada
- County
- Humboldt
- Mining district
- National District
- Development status
- Occurrence
- Mine type
- Mixed underground / surface
- Primary commodity
- Gold
- Verification
- Mindat Confirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Sec 28 T46N R39E Structure: Small Faults; Slickensides On Surfaces. Alteration: Sericite, Kaolin; Silicification; Bleaching Deposit: Silicified breccia outcrop on N edge of old shaft, explored by several pits and trenches to s W and by adits to ne…
Additional documented workings
-
Adit
— documented in 1 source record.
Mindat -
Shaft
— documented in 1 source record.
Mindat
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 2 shaft symbols
- 9 adit symbols
View individual source records (4)
Every underlying record used to build the summary above, for research/verification use.
-
Adit
Documented in Mindat locality data. Evidence: icified breccia outcrop on N edge of old shaft, explored by several pits and trenches to s W and by adits to ne... -
Shaft
Documented in Mindat locality data. Evidence: : Sericite, Kaolin; Silicification; Bleaching Deposit: Silicified breccia outcrop on N edge of old shaft, explored by several pits an…
- 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: Occurrence
Commodities & minerals
Reported minerals
- Alunite
- Clay
- Quartz
- Sericite
- Chalcopyrite
- Cinnabar
- Galena
- Marcasite
View all 35 reported minerals
- Alunite
- Clay
- Quartz
- Sericite
- Chalcopyrite
- Cinnabar
- Galena
- Marcasite
- Sphalerite
- Stibnite
- Tetrahedrite
- Alunite
- Basalt
- Chalcopyrite
- Cinnabar
- Clay
- commodity:Antimony
- commodity:Arsenic
- commodity:Copper
- commodity:Gold
- commodity:Iron
- commodity:Lead
- commodity:Mercury
- commodity:Silver
- commodity:Zinc
- Galena
- Marcasite
- Muscovite
- Pyrite
- Quartz
- Rhyolite
- Sericite
- Sphalerite
- Stibnite
- Tetrahedrite Subgroup
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 (2)
- mapped adit symbols (9)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 59691
Supports:
- locality identity
- reported minerals (24)
- underground workings
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Documented adit evidence