United States

Long Canyon Mine

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Categories

Overview

Mine TypeOpen Pit
StageResidual leach
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
ShapshotOn July 1, 2019, Long Canyon was contributed to Nevada Gold Mines, a joint venture between Barrick (61.5%) and Newmont (38.5%).

Mining temporarily ceased at Long Canyon in 2022. As such, the asset remains a residual leach operation in 2023 while Phase 2 is advanced through permitting with mining expected to recommence in 2026.
Related AssetNevada Gold Mines Operation

Owners

SourceSource
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
On March 10, 2019, Barrick entered into an implementation agreement with Newmont to create a joint venture, named Nevada Gold Mines.

On July 1, 2019, Long Canyon was contributed to Nevada Gold Mines, a joint venture between Barrick and Newmont.

Barrick is the operator of the joint venture and owns 61.5%, with Newmont owning the remaining 38.5% of the joint venture.

Deposit type

  • Sediment-hosted
  • Carlin-type

Summary:

Long Canyon is a sediment-hosted disseminated gold deposit.

The gold mineralization at Long Canyon is best described as sediment-hosted, Carlin-type gold mineralization.

The mineralization identified at Long Canyon shares many of the characteristics of Carlin-type gold mineralization, including:

• Stratigraphic control on mineralization - mineralization is hosted primarily in limestone, particularly in silty, thin-bedded units;

• Structural control on mineralization - mineralization occurs in karstic cavities, collapse breccias, and anticlinal fold hinges;

• Geochemical association - elevated arsenic, mercury, antimony, and thallium accompany the gold mineralization, while silver and base-metal concentrations are low; and

• Alteration - mineralization is associated with decalcification, silicification/jasperoid, oxidized variants of pyrite and arsenical pyrite or arsenopyrite, and clay alteration.

The Long Canyon project also displays some characteristics that are unlike typical Carlin-type gold deposits. The prevalent association of hematite with gold mineralization at Long Canyon is not a common characteristic among all Carlin-type deposits, although this phenomenon is associated with weathered/oxidized portions of some of the deposits.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

Mining of Phase 1 was completed in May 2022, followed by residual production over the remainder of the year.
CommodityUnits202320222021202020182017
Gold koz 00000000000170174
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics2022202120202019
Stripping / waste ratio 00000000000
Ore tonnes mined 0000000000000000
Waste 0000000000000000000
Total tonnes mined 0000000000000000000
Tonnes processed 0000000000000000

Production Costs

CommodityUnits202320222021202020192018
Total cash costs Gold USD 000 000 000 335 / oz  
Total cash costs Gold USD 0000000 0000000 0000000 0000000 333 / oz  
Total cash costs (sold) Gold USD 423 / oz  
All-in sustaining costs (AISC) Gold USD 000 000 000 683 / oz  
All-in sustaining costs (AISC) Gold USD 00000000 0000000 0000000 0000000 681 / oz  
All-in sustaining costs (sold) Gold USD 505 / oz  
All-in costs Gold USD 000 000 000 683 / oz  
All-in costs Gold USD 0000000 0000000 0000000 681 / oz  
^ Guidance / Forecast.
Net of By-Product.

Operating Costs

Currency2022202120202019
OP mining costs ($/t mined) USD 3.09  2.42  1.87  1.76  
Processing costs ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
G&A ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
G&A ($/t mined) USD  ....  Subscribe

Financials

Units20212020201920182017
Capital expenditures M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe 11   10  
Sustaining costs M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe 11   3  
Pre-tax Income M USD 44   63  

Heavy Mobile Equipment

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Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 3, 2023
....................... Subscription required ....................... Subscription required Subscription required Aug 3, 2023

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016

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