Safety: Historic mine sites can be hazardous. Never enter abandoned workings without qualified supervision. Read full notice

Nevada · Lander County

Robertson - Triplet Project

Unconfirmed Gold Mixed Underground / Surface

Key facts

State
Nevada
County
Lander
Mining district
Bullion District
Development status
Producer
Mine type
Mixed underground / surface
Primary commodity
Gold
Verification
Unconfirmed

Also known as

  • Triplet Gulch project (Lode), 39A Zone, Altenburg Hill, Gold Pan Zone, Porphyry Zone, Widow's Mine Zone, Robertson South Joint Venture, Tenabo Mine, Robertson Mine

Mine Location

Approximate Area

Open in Mine Map

Documented underground workings

Source classification: Underground operation documented

Specific physical workings are not yet documented in discrete records.

Historical mapped workings

USGS historical topographic mapping. Features may no longer exist.

  • 41 shaft symbols
  • 29 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=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: Producer

Operators / organizations

  • Coral Gold Resources Ltd. · Historical operator · 2004

Commodities & minerals

Reported minerals

  • Gold

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 (41)
  • mapped adit symbols (29)

Historical mapped features may no longer exist.

Dataset information

Related underground mines

Gold Acres Deposit

Nevada · Lander County

Unconfirmed Gold Producer Mixed Underground/Surface

Documented adit evidence

Altenburg Hill

Nevada · Lander County

Unconfirmed Gold Past Producer

Historical mapped workings available

Grey Eagle Mine

Nevada · Lander County

Source Corroborated Lead Past Producer

Documented shaft evidence