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United States
Fort Knox Mine

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 Location:
25 km NE from Fairbanks, Alaska, United States

  Address:
PO Box 73726
Fairbanks
Alaska, United States
99707-3726
Phone  ...  Subscription required
Fax(907)-490-2290
WebsiteWeb
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  • Overview
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  • Mining
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  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2030


Owners

Source: p. 59
CompanyInterestOwnership
Kinross Gold Corp. 100 % Indirect
Fairbanks Gold Mining, Inc (operator) 100 % Direct
The Fort Knox mine is owned and operated by Kinross’ wholly-owned subsidiary Fairbanks Gold Mining Inc. (“FGMI”).

Contractors

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Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork
  • Skarn


Summary:

The Fort Knox deposit is classified as an Intrusion-Hosted Mesozonal deposit in the Reduced Intrusion-Related Gold Deposit (RIRG) style (Hart, 2005). RIRG deposits typically occur associated with moderately reduced intrusions in reduced siliciclastic sequences, and have a common association with W-Sn±Mo metallogenic belts. The key characteristics of these deposits are a low sulfide content, association with reduced ore mineral assemblages, and metal assemblages of Au>Ag, Bi, As, W, and Mo (Robert, 2007). The reduced intrusion occurs as equigranular and multiphase granitic stocks and batholiths. Gold is hosted in sheeted veins, which are coeval with their causative intrusion (Robert, 2007). Although these deposits do not have a significant hydrothermal alteration footprint, there are often peripheral mineralization occurrences and proximal thermal alteration, which have a predictable distribution pattern, including secondary aluminosilicates, biotite, and tourmaline, skarns and polymetallic veins (Hart, 2005; Robert, 2007). The Gil deposit is hosted in skarns and quartz veins within the skarns.

Gold mineralization at Fort Knox Mine is hosted entirely within the Late Cretaceous (~92 Ma), Fort Knox granite pluton. The contact with the Fairbanks Schist is abrupt. Drilling indicates that the pluton contacts plunge steeply to the north and south and moderately to the east and west. The surface exposure of the pluton is approximately 1,100 m (3,609 ft) in the east-wes ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Fort Knox property is located in Fairbanks North Star Borough, Alaska and includes the main Fort Knox open pit mine, mill, tailings storage facility, heap leach facilities, the Gil-Sourdough Exploration project, and the former True North mine site. The Gil Project is located approximately six miles east of the Freshwater Reservoir at Fort Knox. The project is connected to the Fort Knox operational area by a production haul road that originates near the Fort Knox TSF dam and ends at the project site.

The existing operation is a conventional hard-rock open pit using drilling, blasting, loading, hauling and support functions.

Mining is currently performed using 9 m (30 ft) benches, which are mined as single benches in schist and in double-bench orientations in granites.

The Fort Knox mine operates 24 hours per day, 365 days per year.


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2021202020192018201720162015
Gold Equivalent oz  ......  Subscription required  ......  Subscription required  ......  Subscription required255,569381,115409,844401,553
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required25,367 kt24,646 kt26,362 kt31,750 kt
Tonnes processed  ......  Subscription required  ......  Subscription required26,562 kt28,097 kt32,736 kt42,360 kt
Daily milling capacity  ......  Subscription required  ......  Subscription required36,287 t
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Mineral reserves cutoff grade: 0.10 to 0.36 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Proven 34,810 kt Gold 0.3 g/t 375 koz
Probable 196,575 kt Gold 0.3 g/t 2,092 koz
Proven & Probable 231,385 kt Gold 0.3 g/t 2,467 koz
Measured 7,685 kt Gold 0.3 g/t 77 koz
Indicated 168,931 kt Gold 0.3 g/t 1,600 koz
Measured & Indicated 176,616 kt Gold 0.3 g/t 1,677 koz
Inferred 85,071 kt Gold 0.2 g/t 672 koz

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs (sold) Gold Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 837 / oz   628 / oz   741 / oz  
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 89.5   102.1   70.2  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 325.5   481.1   510.8  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required -41.5   224.7   110  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.4   243.2   119.9  
Subscription required - Subscription is required


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of June 11, 2018:
HME TypeModelQuantityStatus
Excavator ....................... Subscription required ....................... Subscription required Existing
Excavator ....................... Subscription required ....................... Subscription required Existing
Loader ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
Truck (haul) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 7, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014
Subscription required 2013

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... 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 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Financial Review 2018
Management Discussion & Analysis 2018
Press Release 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Annual Information Form 2017
Financial Review 2017
Management Discussion & Analysis 2017
Other 2017
Press Release 2017
Year-end Mineral Reserves 2017
Annual Information Form 2016
Annual Report 2016
Other 2016
Annual Report 2015
Other 2015
Technical Report 2015
Year-end Mineral Reserves 2015
Annual Report 2014
Other 2014
Other 2013
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