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United States
Red Hills Mine

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 Location:
9 km NW from Ackerman, Mississippi, United States

  Address:
1000 McIntire Road
Ackerman
Mississippi, United States
39735
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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 (thermal)
Mining Method
  • Surface miner
  • Truck & Shovel / Loader
  • Dragline
Production Start...
Mine Life2032
All production from the Red Hills Mine is delivered to its customer's Red Hills Power Plant (RHPP). Lignite is directly shipped to the RHPP.


Owners

Source: p. 12
CompanyInterestOwnership
NACCO Industries Inc. 100 % Indirect
Mississippi Lignite Mining Company (operator) 100 % Direct
The Red Hills Mine, an active lignite surface mine in Mississippi, is owned and operated by Mississippi Lignite Mining Company, a wholly-owned subsidiary of North American Coal Corporation which is a wholly-owned subsidiary of NACCO Industries, Inc.

Contractors

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Deposit Type

  • Sedimentary


Summary:

LOCAL AND PROPERTY GEOLOGY The average thickness of the Wilcox section containing the mineable lignite seams at the Red Hills Mine and surrounding area is approximately 140 feet. Vertical repetition of the geological characteristics results in a straightforward depositional setting facilitating comprehensive analysis of the geological, as well as the geochemical, geotechnical, and geohydrological baseline conditions of the Red Hills Mine. Following the regional geology, trends in lignite seam sulfur content at the Red Hills Mine support a geologic transition from marine to nonmarine environments. Increased sulfur values are generally associated with marine influences. The C-seam marks a transition from higher sulfur below to lower sulfur contents above. The local structural geology for the Red Hills Mine also follows the regional structure with a northwest-southeast strike dipping to the southwest. The lignite seams are gently undulating due to differential compaction of the underlying sediments. Small, localized faults have been encountered within the lignite seams while mining through the MS-002 permit area, and are anticipated to be encountered in the MS-004 permit area. These faults have been discontinuous and the seam displacement has typically been less than 10 feet. The faults have not materially affected mining or production at the Red Hills Mine. MINERAL DEPOSIT TYPE The Red Hills Mine is solely focused on mining lignite from the project area. GRAVEL CREEK MEMBE ........


Mining Methods

  • Surface miner
  • Truck & Shovel / Loader
  • Dragline


Summary:

The lignite at Red Hills Mine surface mining operation is recovered using dragline and conventional truck and shovel mining methods due to the proximity of the lignite to the surface and the physical characteristics of the deposit. Mining operations progress in a five-step process, which includes clear and grub, overburden and interburden removal, lignite production, spoil backfill and grading, and reclamation. In the development phase, drainage and water control were established, and then the required infrastructure consisting of power, mine office and maintenance facilities, lignite stockpile facilities, and roadways were established.

The Red Hills Mine began operations in the MS-002 permit area in Mine Area 1 (MA1) and is in the process of transitioning to the MS-004 permit area to Mine Area 3 (MA3). The initial boxcut construction for MA3 began in 2021 and mining in this area will continue through April 2032.

PIT DESIGN
To determine highwall stability, a circular arc failure approach has been utilized. A minimum FoS of 1.2 was calculated using the Modified Bishop Method for each highwall configuration that will be encountered by the mine. Due to the depth and multiple seam nature of the lignite deposit, benching will be required to allow for continuous burden removal and lignite mining. For individual slopes less than 80 feet, the highwall angle is stable up to 70 degrees. Between 80 and 180 feet, the effective slope angle decreases with a line ........


Crushing and Grinding


Processing


Summary:

The overall average quality of the mined lignite seams meets the quality specifications stated in the LSA without beneficiation. No mineral processing is performed by MLMC.


Production:

CommodityUnits2023202220212020201920182017
Coal (thermal) tons  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required2,939,7382,373,522
Heat ContentBTU/lb5,1005,2005,2005,2005,120
Sulfur%0.60.60.60.6
All production numbers are expressed as ROM coal. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202320222021202020192018
Coal tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,587,165 tons2.7 M tons2.94 M tons
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Reserves at December 31, 2022:
An economic cutoff in the Life of Mine plan averaged $36.06 per ton and was used to demonstrate coal reserves.

Mineral Resources are reported using an economic cutoff of $29.66 per ton.

CategoryTonnage Commodity
Proven 18,000 k tons Coal (thermal)
Probable 7,400 k tons Coal (thermal)
Proven & Probable 25,400 k tons Coal (thermal)
Measured 4,300 k tons Coal (thermal)
Indicated 500 k tons Coal (thermal)
Measured & Indicated 4,800 k tons Coal (thermal)
Inferred 1,600 k tons Coal (thermal)

Financials:

Units2023
Capital expenditures (planned) M USD  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment as of December 31, 2022:
HME TypeModelSizeQuantity
Backhoe ....................... Subscription required ....................... Subscription required
Backhoe ....................... Subscription required 5 cu. yd ....................... Subscription required
Backhoe ....................... Subscription required ....................... Subscription required
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required ....................... Subscription required
Dragline ....................... Subscription required 82 cu. yd ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Shovel (hydraulic) ....................... Subscription required ....................... Subscription required
Shovel (hydraulic) ....................... Subscription required ....................... Subscription required
Shovel (rope) ....................... Subscription required 41 cu. yd ....................... Subscription required
Surface miner ....................... Subscription required ....................... Subscription required
Truck ....................... Subscription required 40 tons ....................... Subscription required
Truck (dump) ....................... Subscription required 140 tons ....................... Subscription required
Truck (dump) ....................... Subscription required 150 tons ....................... Subscription required
Truck (dump) ....................... Subscription required 200 tons ....................... Subscription required
Truck (water) ....................... Subscription required 21000 gallons ....................... Subscription required
Truck (water) ....................... Subscription required 32000 gallons ....................... Subscription required
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Mine Management:

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 6, 2023
....................... Subscription required ....................... Subscription required ....................... Subscription required Sep 6, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 6, 2023
....................... Subscription required ....................... Subscription required ....................... Subscription required Jun 19, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014
Subscription required 2013
Subscription required 2012
Subscription required 2011

Corporate Filings & Presentations:

DocumentYear
Form 10-K 2022
Other 2022
Other 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Other 2018
Form 10-K 2017
Other 2017
Form 10-K 2016
Other 2016
Other 2016
Form 10-K 2015
Other 2015
Other 2011
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