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California · Calaveras County

Hinch Mine

Unconfirmed Chromium Mixed Underground / Surface 2 mapped shafts

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Key facts

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

Mine Location

Approximate Area

Open in Mine Map

Documented underground workings

  • Shaft — documented in 1 source record.
    USGS Historical Topographic Mine Features

Historical mapped workings

USGS historical topographic mapping. Features may no longer exist.

  • 2 shaft symbols
  • Shaft : Salt Spring Valley , 1962
View individual source records (4)

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

  • Shaft
    Mapped on historical USGS topographic data (Mine Shaft). Historical map features may no longer exist in the field.
  • USGS MRDS working type: 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.

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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

Operators / organizations

  • F. W. Dean And Fred Wilson-Last Operator During W. W. I · Historical operator · 1976

Commodities & minerals

Reported minerals

  • Chromite
  • Olivine
  • Penninite
  • Pyroxene
  • Serpentine

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 (2)

Historical mapped features may no longer exist.

Dataset information

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