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Nevada · Humboldt County

NBMG Sample Site 2628

Unconfirmed Gold Mixed Underground / Surface 4 mapped shafts 3 mapped adits

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Key facts

State
Nevada
County
Humboldt
Mining district
Mill City District
Development status
Past Producer
Mine type
Mixed underground / surface
Primary commodity
Gold
Verification
Unconfirmed

Mine Location

Approximate Area

Open in Mine Map

Documented underground workings

Mindat locality description

Deposit: White quartz vein along shear zone contains red hematite staining on fractures, park red hematite banding on both walls, has 0.5-1ft fault gouge on walls. Vein is brecciated and cemented with Fe oxide silica. Vein pinches and swells along stri…

View full locality record on Mindat

Additional documented workings

  • Adit — documented in 2 source records.
    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.

  • 4 shaft symbols
  • 3 adit symbols
  • Shaft : Pronto , 1982
  • Adit : Pronto , 1982
  • Adit : Pronto , 1982
View individual source records (5)

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.
  • 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

Unconfirmed

Source records support underground workings, but UndergroundMines has not yet independently verified this mine.

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Why it's listed

Source records document both underground and surface mining.

View sources & evidence

History & operations

Historical record

  • Development status: Past Producer

Commodities & minerals

Reported minerals

  • Calcite
  • commodity:Arsenic
  • commodity:Gold
  • commodity:Lead
  • commodity:Silver
  • Diorite
  • Hematite
  • Native Gold
View all 10 reported minerals
  • Calcite
  • commodity:Arsenic
  • commodity:Gold
  • commodity:Lead
  • commodity:Silver
  • Diorite
  • Hematite
  • Native Gold
  • Quartz
  • Shale

Access & recent conditions

Land
unknown

Community reports

No community field reports yet.

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Sources & evidence

USGS Mineral Resources Data System

Type: Historical mine record

Supports:

  • mine identity
  • development status
  • commodities
  • underground eligibility evidence

USGS Historical Topographic Mine Features

Type: Historical mapped physical features

Dataset: DOI 10.5066/P9TAALR6

Supports:

  • mapped shaft symbols (4)
  • mapped adit symbols (3)

Historical mapped features may no longer exist.

Dataset information

Mindat

Type: Mineralogical locality database

Record: Mindat Locality: 429989

Supports:

  • locality identity
  • reported minerals (10)

A Mindat locality match does not by itself establish underground workings.

View on Mindat

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