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United States
Carlin Complex (El Nino (South Arturo) Mine, Emigrant / Rain Mine, Exodus Mine, Gold Quarry Mine, Goldstar Mine, Goldstrike Mine, Leeville Mine, Pete Bajo Mine, Silverstar (Genesis) Mine, South Arturo Mine) (Nevada Gold Mines Operation)

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 Location:
31 km NW from Carlin, Nevada, United States
  Regional Office:
1655 Mountain City Hwy
Elko
Nevada, United States
89801
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WebsiteWeb
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  • Overview
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  • Mining
  • Processing
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  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Longitudinal stoping
  • Cemented backfill
  • Paste backfill
Production Start...
Mine Life2045
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin operation were contributed to the Nevada Gold Mines JV and are now collectively referred to as Carlin.

The Carlin Complex consists of several open pit and underground operations. It includes Goldstrike Betze-Post open pit, Goldstrike underground (inclusive of the Ren underground expansion) South Arturo open pit, and El Nino underground. The Carlin Complex also includes the Carlin North Area (consisting of multiple open pit mines known as Genesis/Tri-Star), underground (inclusive of the North Leeville expansion), Carlin underground portal mines: Pete Bajo and Exodus/Northwest Exodus, El Niño, Rita K), Gold Quarry (open pit mine), Rain/Emigrant (open pit mine) and satellite open pit deposits (Perry and Green Lantern). The Carlin Complex also consists of various processing facilities, which process the ore from across the Carlin Complex, as well as from Nevada Gold Mines’ other sites and toll ore.
Latest NewsNevada Gold Mines places order for 62 Komatsu haul trucks     October 9, 2023

Owners

Source: p. 81
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin operation were contributed to the Nevada Gold Mines joint venture and are now collectively referred to as Carlin.

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

Contractors

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Deposit Type

  • Carbonate hosted
  • Carlin-type
  • Stratabound
  • Hydrothermal

Summary:

The mineral deposits along the Carlin Trend form a suite of deposits known as Carlin-type. Carlin deposits comprise stratabound disseminated gold mineralization hosted by Silurian-Devonian carbonate rocks that have been metamorphosed to varying extents. The deposits are hydrothermal in origin and are usually structurally controlled. The carbonate host rocks are part of an autochthonous miogeoclinal carbonate sequence exposed as tectonic windows beneath the Roberts Mountains allochthon. The allochthonous rocks are a sequence of lower Paleozoic dominantly siliciclastic eugeoclinal rocks that were displaced eastward along the Roberts Mountains Thrust over younger units during the Upper Paleozoic Antler Orogeny. The Carlin Trend is the largest concentration of gold deposits in North America. NGM and other companies have discovered over 40 deposits along the 64 kilometre long, north–northwest-oriented Carlin Trend. Gold deposits are generally hosted in a variable stratigraphic package of Ordovician through Lower Mississippian rocks. The preferential host rocks are autochthonous carbonate assemblage rocks that are now preserved in uplifted tectonic windows. All Carlin Trend gold deposits that have been discovered to date are either within the Bootstrap, Lynn, Carlin, and Rain tectonic windows, or proximal to them. Within specific deposits, Cretaceous and Tertiary dike swarms and a Jurassic-aged granodiorite stock (Goldstrike stock) may constitute as much as 15% of the mineralized m ........

Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Longitudinal stoping
  • Cemented backfill
  • Paste backfill

Summary:

Open Pit
The Carlin Complex has four major open pit operations including Goldstrike, Gold Quarry, Goldstar (part of the Genesis/Tri-Star pits), and South Arturo (which returned to production in December 2022). All of these are truck and shovel operations. Blasting is required and blast patterns are laid out according to material type, using rock type designations of hard, average, soft or a combination of the three. The pit design varies between 6.1-meter to 12.2-meter (20 to 40 foot) benches and, where possible, up to 18.3-meter (60 foot) benches in the ore, though mined in 6.1-meter (20 foot) cuts. Slopes vary based on location.

The current mine equipment fleet will be used throughout the mine life and is shared with the other mines at the Carlin Complex. The number of loading and hauling units allocated to each deposit varies depending on the operational needs from the mine plans. The equipment list also includes the auxiliary equipment needed to support mining and the re-handling of the ore from the stockpile pad into the mill feeders.

Underground
The Carlin Complex has three major operating underground mines including Goldstrike underground, Leeville, and the Portal Mines (including Pete Bajo, Exodus, El Nino, and Rita K). All mines utilize driftand-fill and/or long-hole stoping and are accessed by shaft and/or portals. Ground conditions vary greatly in the different mining areas. Poor conditions in some areas are due to increased brecciat ........

Crushing and Grinding
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Processing

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Summary:

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Production:
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin were contributed to Nevada Gold Mines and are now referred to as Carlin.

CommodityUnits2023202220212020201920182017
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required927972
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
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Operational Metrics:

Metrics20222021202020182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required15,026 kt
Waste OP  ......  Subscription required  ......  Subscription required103,380 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required118,407 kt
Tonnes processed  ......  Subscription required  ......  Subscription required17,020 kt8.2 M tons8.5 M tons
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Reserves at December 31, 2022:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven & Probable In-Situ (OP) 119 Mt Gold 2.27 g/t 8.7 M oz
Proven & Probable In-Situ (UG) 27 Mt Gold 8.79 g/t 7.8 M oz
Proven & Probable Total 146 Mt Gold 3.5 g/t 16.3 M oz
Measured In-Situ (OP) 47 Mt Gold 2.18 g/t 3.3 M oz
Measured In-Situ (UG) 39 Mt Gold 7.8 g/t 9.6 M oz
Measured Total 86 Mt Gold 4.69 g/t 13 M oz
Indicated In-Situ (OP) 227 Mt Gold 1.94 g/t 13.8 M oz
Indicated In-Situ (UG) 21 Mt Gold 6.74 g/t 4.3 M oz
Indicated Total 247 Mt Gold 2.35 g/t 17.9 M oz
Inferred In-Situ (OP) 98 Mt Gold 1.2 g/t 3.9 M oz
Inferred In-Situ (UG) 21 Mt Gold 7.3 g/t 5.1 M oz
Inferred Total 119 Mt Gold 2.3 g/t 8.9 M oz

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs (sold) Gold USD 843 / oz†   823 / oz†  
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in sustaining costs (sold) Gold USD 1,027 / oz†   1,030 / oz†  
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units2022202120202019
OP mining costs ($/t mined) USD 2.93  2.13  2.02  2.32  
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Financials:

Units2022202120202019201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 152   174   163  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 153   174   173  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD 79   139   144  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment as of March 25, 2020:
HME TypeQuantity
Bolter ....................... Subscription required
Dozer ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required
Drill ....................... Subscription required
Drill (long hole) ....................... Subscription required
Excavator ....................... Subscription required
Grader ....................... Subscription required
Jumbo ....................... Subscription required
Loader ....................... Subscription required
Loader (FEL) ....................... Subscription required
Personnel Carrier ....................... Subscription required
Shovel ....................... Subscription required
Truck (haul) ....................... Subscription required
Truck (water) ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 22, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 27, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Annual Information Form 2022
Annual Report 2022
Corporate Presentation 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Form 10-K 2016
Year-end Mineral Reserves 2016
Form 10-K 2015
Other 2015
Year-end Mineral Reserves 2015
Other 2011
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News:

NewsDate
Nevada Gold Mines places order for 62 Komatsu haul trucks October 9, 2023

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