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A Brief Note On Tour : Coteau Freedom Mine, A Subsidiary Of North American Cole Mine Of Naco

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Summary Written By: Bradley Penney
Tour: Coteau Freedom Mine
Date: 8/11/15
Time: 8:00
Location: North of Beulah, ND
Tour Guide: Cheri Shantz

The Coteau Freedom Mine, a subsidiary of North American Cole Mine of NACO, provides coal to three main consumers: Antelope Valley Station, Leland Olds Station, and Dakota Gasification Company. All three consumers of the coal excavated at the Coteau Freedom Mine are part of the Basin Electric Company, which produces and distributes much of the power for the northern central states. The mine itself excavates about 15 million tons of coal per year, which is nearly 60,000 tons of coal per day. It is responsible for one half of the production of coal in North Dakota.

Tour guide Cheri Chantz provided a background on how coal and the mine itself were formed. The Coteau Freedom Mine was formed over 50-60 million years ago. It takes approximately ten feet of vegetation under heat and pressure forms approximately one foot worth of coal. The type of coal found at the Coteau Freedom Mine was lignite coal, which is a low quality form of coal. Lignite coal has lower energy content or BTU compared to other forms of coal due to the decrease in the amount of carbon present in the coal and an increase in impurities and water content. In fact, lignite coal is nearly one-third water.

The process to mine the coal is quite complex. First, surveyors are called on site to document the layout of the land so that in can be restored to

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