The Pennsylvania mining complex, which includes the Bailey Mine, the Enlow Fork Mine and the Harvey Mine, has extensive high-quality coal reserves. The Pittsburgh No. 8 Coal Seam is a large contiguous formation of uniform, high-Btu thermal coal.

The design of the Pennsylvania mining complex is optimized to produce large quantities of coal on a cost-efficient basis. All of mines utilize longwall mining, which is a highly automated underground mining technique that produces large volumes of coal at lower costs compared to other underground mining methods. Generally the company operate five longwalls and 15-17 continuous mining sections at the Pennsylvania mining complex.

The central preparation plant is connected via conveyor belts to each of the PAMC's mines and cleans and processes up to 8,200 raw tons of coal per hour. The PAMC's on-site logistics infrastructure at the central preparation plant includes a dual-batch train loadout facility capable of loading up to 9,000 clean tons of coal per hour and 19.3 miles of track linked to separate Class I rail lines owned by Norfolk Southern and CSX, which significantly increases the PAMC's efficiency in meeting its customers' transportation needs.