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Arizona · Pima County

Pilot

Unconfirmed Copper Mixed Underground / Surface

Key facts

State
Arizona
County
Pima
Mining district
Helvetia-Rosemont District
Development status
Past Producer
Mine type
Mixed underground / surface
Primary commodity
Copper
Verification
Unconfirmed

Also known as

  • Unit, Az, Usbm Ofr Mla 11-94., Coronado Nf, Part 12, Santa Rita Mt

Mine Location

Approximate Area

Open in Mine Map

Documented underground workings

Mindat locality description

‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Prescott, AZ: 46.

View full locality record on Mindat

Historical mapped workings

USGS historical topographic mapping. Features may no longer exist.

  • 7 shaft symbols
  • 23 adit symbols
View individual source records (2)

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

  • 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.

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

  • Asarco (American Smelting And Refining Co.) · Historical operator · 1992

Commodities & minerals

Reported minerals

  • Chalcocite

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 (7)
  • mapped adit symbols (23)

Historical mapped features may no longer exist.

Dataset information

Mindat

Type: Mineralogical locality database

Record: Mindat Locality: 52685

Supports:

  • locality identity
  • reported minerals (1)

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

View on Mindat

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