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United States
Leer South/Sentinel Mine

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 Location:
5 km N from Philippi, West Virginia, United States

  Address:
RT3, Box 146
Philippi
West Virginia, United States
26416
Phone  ...  Subscription required
WebsiteWeb
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (metallurgical)
Mining Method
  • Continuous
  • Room-and-pillar
Processing
  • Wash plant
  • Dense media separation
Mine Life2021
Leer South/Sentinel mining complex consists of the existing Sentinel underground mine in the Clarion seam, the Leer South longwall operation being developed in the Lower Kittanning seam, a preparation plant and a loadout facility located on approximately 26,000 acres in Barbour County, West Virginia.


Owners

Source: p. 11
CompanyInterestOwnership
Arch Resources, Inc. 100 % Indirect
Wolf Run Mining Company, LLC is an indirect subsidiary of Arch Coal, Inc.

Deposit Type

  • Sedimentary


Summary:


Mining Methods

  • Continuous
  • Room-and-pillar


Summary:

Room and pillar mining is effective for small blocks of thin coal seams. In room and pillar mining, a network of rooms is cut into the coal seam, leaving a series of pillars of coal to support the roof of the mine. Continuous miners are used to cut the coal and shuttle cars are used to transport the coal to a conveyor belt for further transportation to the surface. The pillars generated as part of this mining method can constitute up to 40% of the total coal in a seam. Higher seam recovery rates can be achieved if retreat mining is used. In retreat mining, coal is mined from the pillars as workers retreat. As retreat mining occurs, the roof is allowed to collapse in a controlled fashion.


Crushing and Grinding


Processing

  • Wash plant
  • Dense media separation

Source: Subscription required

Summary:

Coal from the Sentinel mining complex is processed through the preparation plant and shipped by CSX rail to customers.


Production:

CommodityUnits2019201820172016201520142013
Coal (metallurgical) M tons  ......  Subscription required1.21.51.10.91.11
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.


Reserves at December 31, 2019:

CategoryTonnage Commodity
Proven & Probable 43.2 M tons Coal (metallurgical)


Heavy Mobile Equipment as of December 31, 2015:
HME Type
Continuous miner

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 14, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2012

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
Form 10-K 2018
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Form 10-K 2014
Subscription required - Subscription is required.

Aerial view:

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