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

California · Calaveras County

Bismark

Unconfirmed Gold Underground

Save Mine I Visited Verify Flag Add to Trip

Key facts

State
California
County
Calaveras
Development status
Past Producer
Mine type
Underground
Primary commodity
Gold
Verification
Unconfirmed

Mine Location

Approximate Area

Open in Mine Map

Documented underground workings

Mindat locality description

A former lode Au mine located in sec. 29, T4N, R12E, MDM, 0.5 km (0.3 mile) NE of Kentucky House, along Calaveras Creek. Operated around 1877 to 1884 and in 1900. MRDS database stated accuracy for this location is 1,000 meters. Mineralization is a v…

View full locality record on Mindat

View individual source records (2)

Every underlying record used to build the summary above, for research/verification use.

  • USGS MRDS working type: Underground
  • MRDS work_type documents underground workings: Underground · work_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

USGS source data documents underground workings for this record.

View sources & evidence

History & operations

Historical record

  • Development status: Past Producer

Commodities & minerals

Reported minerals

  • Quartz
  • Gold
  • Native Gold
  • Quartz

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

Mindat

Type: Mineralogical locality database

Record: Mindat Locality: 74900

Supports:

  • locality identity
  • reported minerals (2)

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

View on Mindat

Related underground mines

Addie

California · Calaveras County

Unconfirmed Gold Past Producer Underground

Documented adit evidence

Adelia

California · Calaveras County

Unconfirmed Gold Past Producer Underground

After Thought

California · Calaveras County

Unconfirmed Gold Past Producer Underground

Documented shaft evidence

Adelaide

California · Calaveras County

Unconfirmed Gold Past Producer Underground

Historical mapped workings available