Powder River Basin

The Powder River Basin (PRB) of Montana and Wyoming is the largest low sulfur coal source in the nation. Eight of the ten largest mines in the United States are located in the PRB.

Montana Montana leads the nation in compliance coal reserves with over 50 billion tons. In 2008, Montana produced 45 million tons making it the fifth largest coal producing state in the country.
	Absaloka Mine Decker Mine Rosebud Mine Signal Peak Spring Creek Mine
Wyoming Wyoming has about 25 billion tons of compliance reserves. Coal underlies over half the state covering 53,000 square miles. A total of 468 millions tons of coal was produced in Wyoming during 2008 with 97% originating in the Powder River Basin. Approximately 40% of all U.S. steam coal is produced in Wyoming.
	Antelope Mine Belle Ayr Mine Black Thunder Mine Buckskin Mine Caballo Mine Clovis Point Coal Creek Mine Cordero Rojo Mine Dry Fork Mine Eagle Butte Mine East Thunder Mine North Antelope/Rochelle Mine Rawhide Mine Rojo Mine West Thunder Mine