Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
- Truck & Shovel / Loader
- Dragline
|
Production Start | ...  |
Mine Life | 2031 |
The Falkirk Mine is a surface mining operation that has all permits in place to operate and adhere to the current mine plan. |
Source:
p. 4,90,121
Company | Interest | Ownership |
NACCO Industries Inc.
|
100 %
|
Indirect
|
The Falkirk Mining Company Inc.
(operator)
|
100 %
|
Direct
|
The Falkirk Mining Company (Falkirk), a wholly-owned subsidiary of North American Coal (NACoal), which is a wholly-owned subsidiary of NACCO, ownes and operates the Falkirk Mine in North Dakota.
Contractors
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Summary:
The Falkirk Mine is located in the Sentinel Butte Formation of the Fort Union Group which is one of the most prolific lignite-bearing stratum in the state.
The economically minable coals in the reserve occur in the Sentinel Butte Formation (Paleocene) and the Bullion Creek Formation (Paleocene) and are unconformably overlain by the Coleharbor Formation (Quaternary). The Sentinel Butte Formation conformably overlies the Bullion Creek Formation. Paleocene deposition was initiated by an influx of coarse sediment dispersed eastward and southeastward, in deltaic fashion, across early Bullion Creek swamps. The paleoslope appears to have been variable, both in magnitude and in direction, and reflects Paleocene tectonism to the west and northwest. The elevation of western North Dakota, relative to base level, increased during Sentinel Butte time and probably reflects increased deposition to basinal subsidence.
The reserve area is situated on a glacially modified upland drainage divide of relatively low relief. The reserve is defined on the south and west by the present day Missouri River Valley. The northern and eastern extents of the field are defined by pre-glacial channels that have subsequently been modified by glacial and interglacial activity. The valley to the east is incised by a glacial meltwater channel (Coal Lake Coulee). The valley bisecting the reserve, whose surface is now occupied by the Weller Slough Complex, appears to have been a main tribu ........

Mining Methods
- Truck & Shovel / Loader
- Dragline
Summary:
The Falkirk Mining Company’s Falkirk Mine is a surface lignite mining operation. This operation is a multiple seam mining operation, which is projected to ultimately produce approximately 7.0 million tons per year through 2031. The lignite coal is shipped by conveyor to the CCSPP, located six miles south of Underwood, North Dakota.
The lignite at the Falkirk Mine surface mining operation is uncovered using dragline, dozer, and conventional truck and shovel mining methods due to the proximity of the lignite to the surface and the physical characteristics of the deposit.
TYPE AND GENERAL MINING METHOD
The primary coal bed is the “Hagel” which is divided into the Upper Hagel (A-1) and Lower Hagel (A-2). These two seams are coincident throughout most of the permit, but are sometimes separated by a clay parting. The Hagel coal bed is overlain in a portion of the permit area by the Kinneman Creek (KNC) seam. This coal seam averages 2.7’ in thickness and ranges from 2.0’-4.3’ within the estimated economically minable area. The KNC seam lies an average of 65’ above the Hagel seam, but varies greatly, from less than 25’ to over 88’ above the Upper Hagel seam. Below the Lower Hagel is a layer of interburden and the final minable “B” seam. The Upper Hagel seam averages 8.5’, and ranges from 3’-9’ in thickness. The parting varies from 0’-3’ in thickness, and averages less than 1’. Thickness on the Lower Hagel seam ranges from 0’-5’ and averages less than 1’ .Throughout most of the pre ........

Source:
Summary:

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Production:
Commodity | Units | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
Coal (thermal)
|
tons
| ......  | ......  | ......  | ......  | 8,231,213 | 7,219,086 | 7,248,542 |
Heat Content | BTU/lb | | | 6,200 | 6,200 | 6,200 | 6,200 | 6,200 |
Sulfur | % | | | 0.62 | 0.62 | 0.62 | 0.62 | 0.62 |
All production numbers are expressed as ROM coal.
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Operational Metrics:
Metrics | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
Coal tonnes mined
| ......  | ......  | 7,261,161 tons | 7,261,161 tons | 8.23 M tons | 7.22 M tons |
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Reserves at December 31, 2021:
The Mineral Reserves in this TRS were determined to be the economically mineable portion of the Mineral Resources after the consideration of modifying factors related to the mining process which convert Measured Resources to Proven Mineral Resources and Indicated Resources to Probable Mineral Reserves. Inferred Mineral Resources were not considered for Mineral Reserves. A cut-off grade of $2.60/MMBTU has been applied to the Measured and Indicated Resources to upgrade these resources into Proven and Probable Reserves.
There are no reported Mineral Resources at the Falkirk Mine. The economically mineable portions of the Measured and Indicated Mineral Resources within the constraints of the CSA and under lease control have been converted to Mineral Reserves.
Category | Tonnage | Commodity |
Proven
|
78,420,784 tons
|
Coal (thermal)
|
Probable
|
199,721 tons
|
Coal (thermal)
|
Proven & Probable
|
78,620,505 tons
|
Coal (thermal)
|
Source:

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Corporate Filings & Presentations:
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