Coal-Supply Regions

As the second largest coal producer in the United States, we utilize state-of-the-art equipment and advanced mining techniques. This maximizes our efficiency in our mining operations in the three main low-sulfur, coal-producing regions:

Powder River Basin
Arch had sales volume of 96.1 million tons of coal in 2009 in the southern Powder River Basin in Wyoming, the nation’s largest coal-supply region. This tonnage is produced at Thunder Basin’s Black Thunder and Coal Creek mines. Arch controls approximately 2.8 billion tons of reserves in the PRB.

Western Bituminous Region
In 2009, Arch sold more than 16.7 million tons of almost exclusively compliance coal from its operations in this region, which includes Colorado, Utah, and southern Wyoming. The company’s Western Bituminous operations include four large underground mines and one surface mine with a total of 467 million tons of proven and probable reserves.

Central Appalachia
Our operations in Central Appalachia are located in southern West Virginia, eastern Kentucky and Virginia. During 2009, these mining complexes sold approximately 13.3 million tons of compliance, low-sulfur and metallurgical coal. We control approximately 336 million tons of proven and probable reserves in CAPP.