Operated by The Coteau Properties Company (a subsidiary of The North American Coal Corporation, Dallas, TX), Beulah, ND. 

Supplies lignite to the Great Plains Synfuels Plant, Antelope Valley Station, Leland Olds Station and Stanton Station.

The largest lignite mine in the United States, operating two 120-cubic-yard draglines and a fleet of 200-ton overburden trucks.

Tours available Monday-Friday by appointment (24-hour notice required).   Call Coteau at (701) 873-2281.