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Canada
Greenhills Mine

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 Location:
8 km NE from Elkford, British Columbia, Canada

  Address:
P.O. Box 5000
Elkford
British Columbia, Canada
V0B 1H0
Phone  ...  Subscription required
Fax250-865-3250
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Coal (metallurgical)
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life47 years (as of Jan 1, 2021)


Owners

Source: p. 49
CompanyInterestOwnership
POSCO International Corp. 20 % Indirect
Teck Resources Ltd. 80 % Indirect
Teck Coal Partnership (operator) 80 % Indirect
Greenhills is operated under a joint venture agreement among Teck Coal, POSCO Canada Limited (POSCAN) and POSCAN’s parent, POSCO. Pursuant to the joint venture agreement, Teck Coal has an 80% interest in the joint venture while POSCAN has a 20% interest.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The coal deposits of the GHO are typical of those found within the Canadian Inner Foothills and Rocky Mountain areas, and have been subjected to a relatively high tectonic deformation. Exploration programs that use this setting are considered applicable to the Project area.

The GHO are located within the Elk Valley Coalfields. The coal measures are situated within the Upper Jurassic to Lower Cretaceous

Kootenay Group sediments. From earliest to latest, the Kootenay Group includes:
- Morrissey Formation: sandstones; subdivided into the Weary Ridge and Moose Mountain Members; 20–80 m in thickness;
- Mist Mountain Formation: interbedded sandstone, siltstone, mudstone, shale and thin to thick seams of bituminous to semi-anthracite coal; 450–550 m in thickness;
- Elk Formation: interbedded sandstone, siltstone, mudstone, shale and locally thick beds of chert-pebble conglomerate and thin seams of high volatile bituminous coal; 350–450 m in thickness.

The Mist Mountain Formation contains approximately 25 coal seams of potential economic interest, consisting of medium to high volatile bituminous coal.

Within the coal measures, there are three structurally-separated coalfields, the Elk Valley, Crowsnest, and Flathead coalfields. The Elk Valley coalfield is located within the Alexander Creek and Greenhills synclines, which are separated by a normal fault. The western edge of the Mist Mountain Formation, and therefore the dis ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining operations use conventional truck-and-shovel methods. As a result of delivery requirements and varying coal seam qualities it is necessary to have multiple coal seams exposed at any time.

GHO currently produces coal from two active pit phases (Cougar Phases 4 and 7) using open-pit coal mining methods, with primary waste stripping and coal mining completed by shovels and rear dump haul trucks. An additional three phases (Cougar Phases 8, and 9, and Swift (GHO)) are planned.

Geotechnical Considerations
The Cougar Phases 4–6 pit designs typically use bench heights of 15 m with a 65º face angle. The wall is typically double-benched, with 10 m wide safety benches, resulting in an overall wall angle of 51º. Where walls come into contact with rehandle, a 10 m berm is left, and the rehandle is sloped up at 37º. Spoils are built with a swell factor of 1.3, and inter-bench angles that vary from 20–37º, depending on configuration and reclamation requirements.

For the Cougar Phases 7–9 pit designs, the selected design shell was a 40º overall highwall angle, with a 65º inter-bench angle. The choice of angle was based upon the height of the highwall and geotechnical guidance for rock mass failures of highwalls at these heights.

Pit walls and spoils are monitored with a combination of prisms, GPS units, radar, wireline monitors, and piezometers. These systems are linked to near real time data collection and analysis software that ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits20172016
Coal (metallurgical) Mt 6.25.8

Operational Metrics:

Metrics202120202019201820172016
Raw coal annual capacity  ......  Subscription required  ......  Subscription required5.9 Mt5.9 Mt5.4 Mt5.4 Mt
Annual production capacity  ......  Subscription required  ......  Subscription required5.4 Mt of clean coal5.4 Mt of clean coal5.4 Mt of clean coal5.4 Mt of clean coal
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Reserves at December 31, 2021:

CategoryTonnage CommodityMarketable Coal
Proven 14,700 kt Coal (metallurgical)
Probable 219,600 kt Coal (metallurgical)
Proven & Probable 234,400 Mt Coal (metallurgical) 234,400
Measured 165,900 kt Coal (metallurgical)
Indicated 221,300 kt Coal (metallurgical)
Inferred 167,600 kt Coal (metallurgical)

Financials:

Units2022
Capital expenditures (planned) M CAD  ......  Subscription required
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Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2019:
HME TypeModelQuantity
Backhoe ....................... Subscription required
Bulldozer ....................... Subscription required
Drill (blasthole) ....................... Subscription required ....................... Subscription required
Drill (blasthole) ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Scraper ....................... Subscription required
Shovel (rope) ....................... Subscription required ....................... Subscription required
Shovel (rope) ....................... Subscription required ....................... Subscription required
Shovel (rope) ....................... Subscription required ....................... Subscription required
Truck (dump) ....................... Subscription required ....................... Subscription required
Truck (dump) ....................... Subscription required ....................... Subscription required
Truck (water) ....................... Subscription required
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Annual Information Form 2017
Annual Information Form 2016
Technical Report 2016
Annual Information Form 2015
Annual Information Form 2014
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