Safety: Historic mine sites can be hazardous. Never enter abandoned workings without qualified supervision. Read full notice
UndergroundMines
Search Sign in Join Free

California · Napa County

Knoxville Mine

Unconfirmed Mercury Mixed Underground / Surface 1 mapped shaft 1 mapped adit

Save Mine I Visited Verify Flag Add to Trip

Key facts

State
California
County
Napa
Development status
Past Producer
Mine type
Mixed underground / surface
Primary commodity
Mercury
Verification
Unconfirmed

Also known as

  • Knoxville, Boston, Excellsior, Redington

Mine Location

Approximate Area

Open in Mine Map

Documented underground 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.

  • 1 shaft symbol
  • 1 adit symbol
  • Shaft : Knoxville , 1958
  • Adit : Knoxville , 1958
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.
  • Shaft
    Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field.
  • USGS MRDS working type: Surface/Underground
  • MRDS work_type documents underground workings: Surface/Underground · work_type
  • 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.

Verify Mine Flag Mine

Why it's listed

Source records document both underground and surface mining.

View sources & evidence

History & operations

Historical record

  • Development status: Past Producer

Operators / organizations

  • George F. And Launce E. Gamble · Historical operator · 1982

Commodities & minerals

Reported minerals

  • Pyrite
  • Quartz
  • Cinnabar
  • Metacinnabar

Access & recent conditions

Land
unknown

Community reports

No community field reports yet.

I Visited This Mine

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 (1)
  • mapped adit symbols (1)

Historical mapped features may no longer exist.

Dataset information

Related underground mines

Aetna

California · Napa County

Unconfirmed Mercury Past Producer Mixed Underground/Surface

Documented adit evidence

Aetna Extension

California · Napa County

Unconfirmed Mercury Occurrence Mixed Underground/Surface

Historical mapped workings available

Corona

California · Napa County

Unconfirmed Mercury Producer Mixed Underground/Surface

Documented adit evidence

Granada

California · Napa County

Unconfirmed Mercury Past Producer Underground

Documented adit evidence