Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
- Truck & Shovel / Loader
- Dragline
|
| Mine Life | 2040 |
In the second quarter of 2016, the Coyote Creek Mine began delivering coal to the Coyote Station owned by Otter Tail Power Company, Northern Municipal Power Agency, Montana-Dakota Utilities Company and Northwestern Corporation. The Coyote Creek Mine generally produces approximately 2.0 million to 2.5 million tons of lignite coal annually when Coyote Station is operating at anticipated levels. |
Summary:
The center of the basin is located near the city of Williston, North Dakota, approximately 110 miles northwest of the Coyote Creek Mine. The economically mineable coal in the reserve occurs in the Sentinel Butte Formation, and is overlain by the Coleharbor Formation. The Coleharbor Formation unconformably overlies the Sentinel Butte Formation. It includes all of the unconsolidated sediments resulting from deposition during glacial and interglacial periods. Lithologic types include gravel, sand silt, clay and till. The modified glacial channels are in-filled with gravels, sands, silts and clays overlain by till. The coarser gravel and sand beds are generally limited to near the bottom of the channel fill. The general stratigraphic sequence in the upland portions of the reserve area consists of till, silty sands and clayey silts.
Mining Methods
- Truck & Shovel / Loader
- Dragline
Summary:
Production:
| Commodity | Units | 2017 | 2016 |
|
Coal (thermal)
|
M tons
| ......  | ...... |
| Heat Content | BTU/lb | 6,900 | 6,900 |
| Sulfur | % | 0.98 | 0.98 |
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Reserves at December 31, 2017:
| Category | Tonnage | Commodity |
|
Proven & Probable
|
74.9 M tons
|
Coal (thermal)
|