• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
United States
Turquoise Ridge Operation (Turquoise Ridge Surface Mine)

This page is not tailored to
devices with screen width under 750 px.
 Location:
127 km NW from Elko, Nevada, United States
  Regional Office:
1655 Mountain City Hwy
Elko
Nevada, United States
89801
Phone  ...  Subscription required
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in United States
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Underhand Cut & Fill
  • Longhole stoping
  • Sill mining
  • Longitudinal stoping
  • Cemented backfill
Production Start...
Mine Life2044
Under the Nevada Gold Mines joint venture (was formed on July 1, 2019), Barrick’s Turquoise Ridge Mine and Newmont’s Twin Creeks Complex were combined as a single operation, now known as Turquoise Ridge.

Now the Turquoise Ridge Complex consists of Turquoise Ridge Underground, Vista Underground, Turquoise Ridge Surface (Newmont’s former Twin Creeks mining complex), which is consisting of the Mega and Vista Pits, one oxide mill (Juniper), one refractory mill (Sage) with two autoclaves, one active leach pad (Izzenhood).

Owners

Source: p. 75-76,81
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
Prior to July 1, 2019, Barrick owned 75% of Turquoise Ridge with its joint venture partner, Newmont, owning the remaining 25%. On July 1, 2019, Barrick’s 75% interest in Turquoise Ridge and Newmont’s 100% interest in Twin Creeks and 25% interest in Turquoise Ridge were contributed to Nevada Gold Mines joint venture and are now collectively referred to as Turquoise Ridge.

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

Contractors

Subscription required - Subscription is required.

Deposit Type

  • Carlin-type
  • Sediment-hosted

Summary:

The Turquoise Ridge deposit is a typical Carlin-type deposit and is characterized by structurally and stratigraphically controlled, sediment-hosted, replacement deposits containing disseminated micron sized gold.

The Turquoise Ridge Complex is situated within the Basin and Range province, near the northeast end of the Osgood Mountains. The Osgood Range is underlain by Cambrian Osgood Mountain Quartzite, Cambrian Preble Formation, Ordovician “Comus” Formation and the “upper plate” Valmy Formation. These units are unconformably overlain by the Permian Etchart Formation (Antler Peak Equivalent) of the Roberts Mountains overlap assemblage, and by the Triassic Golconda allochthon. These uppermost units form a belt of outcrops flanking the western and northern sides of the Osgood Range. All of these units are intruded upon by two generations of felsic intrusive rocks – a set of 114 Ma dacite dikes and sills at Turquoise Ridge Underground and Turquoise Ridge Surface and the 92 Ma Osgood Stock and temporally related dikes and sills. To date, no Eocene intrusive rocks have been identified at the Getchell, Turquoise Ridge Surface, or Pinson camps.

Mineralization of the Turquoise Ridge Underground deposit generally consists of disseminated, micron-sized gold occurring in arsenic-rich rims forming on pyrite, chiefly within decalcified, carbonaceous rocks. All gold bearing zones at Turquoise Ridge Underground are located in proximity to granodiorite dykes that splay ........

Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Underhand Cut & Fill
  • Longhole stoping
  • Sill mining
  • Longitudinal stoping
  • Cemented backfill

Summary:

The Turquoise Ridge Complex consists of:
- 2 underground mines (current rates) Vista Underground ~350ktpa and Turquoise Ridge Underground ~1.5mtpa;
- 2 active open pit mines (current rates) Vista Pit and Mega Pit ~13 mtpa combined;
- 2 inactive mines: Getchell Open Pit and Underground.

TURQUOISE RIDGE UNDERGROUND
Turquoise Ridge Underground is accessed via two shafts and a system of internal ramps and utilizes underhand drift and fill mining methods with cemented rockfill. Turquoise Ridge Underground also employs mechanical mining as well as sill benching as mining methods. Turquoise Ridge Underground currently has two roadheaders in operation. Ground conditions at Turquoise Ridge Underground are poor, and the Rock Mass Rating (RMR) may be less than 20, or very poor, in ore headings.

Turquoise Ridge Underground is currently hoisting 2,700 tonnes of ore per day, which is expected to increase following the completion of a Third Shaft that is currently under construction.

Key challenges in attainment of production levels and costs are the development of sufficient stoping areas and the transition from top-cut development to undercut stoping. Completion of the infrastructure development in the North Zone is necessary to achieve and optimize higher production levels. Construction of a Third Shaft, with a hoisting capacity of 5,500 tonnes per day, is underway and is expected to be commissioned in late 2022. The shaft will dras ........

Crushing and Grinding
Source: Subscription required

- subscription is required.

Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Production:

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required357281355
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Total tonnes mined  ......  Subscription required  ......  Subscription required14,528 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required3,330 kt893.3 kt857.3 kt797.3 kt
Waste  ......  Subscription required  ......  Subscription required11,198 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required5.14
Tonnes processed  ......  Subscription required  ......  Subscription required2,935 kt805.3 kt629.3 kt697.3 kt
Daily ore mining rate  ......  Subscription required  ......  Subscription required2.2 kt
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeContained Metal
Proven 42 Mt Gold 5.09 g/t 7 M oz
Probable 32.5 Mt Gold 6.59 g/t 7 M oz
Proven & Probable 75 Mt Gold 5.74 g/t 14 M oz
Measured 58.5 Mt Gold 4.57 g/t 8.6 M oz
Indicated 67 Mt Gold 5.05 g/t 11 M oz
Inferred 18 Mt Gold 2 g/t 1.2 M oz

Commodity Production Costs:

CommodityUnits202220212020201920182017
Cash costs Gold USD 678 / oz   589 / oz  
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 756 / oz   733 / oz  
All-in sustaining costs (AISC) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 916 / oz   753 / oz  
All-in costs Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2021202020192018201720162015
OP mining costs ($/t mined) USD 3.52.52.2
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
UG mining costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required 27   43   43  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 83   48   43  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 441   373   429  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 205   196   257  
Subscription required - Subscription is required

Heavy Mobile Equipment as of December 31, 2019:
HME TypeModelSizeQuantity
Dozer ....................... Subscription required ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Drill jumbo (single boom) ....................... Subscription required
Drill jumbo (two boom) ....................... Subscription required
Excavator ....................... Subscription required 35 cu. yd ....................... Subscription required
Excavator ....................... Subscription required 27 cu. yd ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Rock bolter ....................... Subscription required
Scraper ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (water) ....................... Subscription required ....................... Subscription required
Truck (water) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 19, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Other 2018
Press Release 2018
Quarterly Report 2018
Technical Report 2018
Other 2017
Other 2017
Press Release 2017
Quarterly Report 2017
Corporate Presentation 2016
Management Discussion & Analysis 2016
Other 2016
Press Release 2015
Annual Report 2014
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.