Overview
Stage | Production |
Mine Type | Underground |
Commodities |
|
Mining Method |
- Continuous
- Room-and-pillar
|
Production Start | ... |
Mine Life | 2042 |
Mountain Laurel complex consists of Mountaineer II underground mine and Cardinal preparation plant. |
Source:
p. 61,474
Company | Interest | Ownership |
Arch Resources, Inc.
|
100 %
|
Indirect
|
Mingo Logan Coal LLC
(operator)
|
100 %
|
Direct
|
Mingo Logan Coal LLC, an indirect wholly owned subsidiary of Arch Resources, Inc., owns and operates the Mountain Laurel complex.
Contractors
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Summary:
Underground mining operations at the Mountain Laurel mining complex extracts High-Vol B metallurgical coal from the Alma and No. 2 Gas seams.
Mining Methods
- Continuous
- Room-and-pillar
Summary:
Mountain Laurel is an underground mining complex located on approximately 38,200 acres in Logan County and Boone County, West Virginia. Underground mining operations at the Mountain Laurel mining complex extracts High-Vol B metallurgical coal from the Alma and No. 2 Gas seams.
Mountain Laurel is operates employed Room-and-Pillar mining method with continuous miners.
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.
At the Mountain Laurel Complex, coal is produced from the Mountaineer II Mine.
Mountaineer Mine: The average mining height is 72 inches. The mine is ventilated with 1 exhaust fan and liberates 4,354,424 Cubic feet of methane in a 24- hour period. This mine has five mechanized mining units (MMU's) and one construction unit, all of which employ continuous mining machines. The mine operate ........
Source:
Summary:
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Reserves at December 31, 2023:
Category | Tonnage | Commodity | Marketable Coal |
Proven
|
M tons
|
Coal (metallurgical)
|
9.3 M tons
|
Probable
|
M tons
|
Coal (metallurgical)
|
7.3 M tons
|
Proven & Probable
|
M tons
|
Coal (metallurgical)
|
16.6 M tons
|
Measured
|
2.5 M tons
|
Coal (metallurgical)
|
|
Indicated
|
17.4 M tons
|
Coal (metallurgical)
|
|
Measured & Indicated
|
19.9 M tons
|
Coal (metallurgical)
|
|
Inferred
|
22.5 M tons
|
Coal (metallurgical)
|
|
Heavy Mobile Equipment as of November 14, 2022:
HME Type | Quantity |
Continuous Miner
|
.......................
|
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Corporate Filings & Presentations:
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