![Arch Coal, Inc. | About Us: Our Mines](/e69yszg/281.jpg)
Arch Coal, Inc. | About Us: Our Mines
Our Mines Mining Complexes Arch Coal is a leading producer of metallurgical coal in Appalachia and the second largest producer of thermal coal in the Powder River Basin with strategic positions in other key supply basins. Arch and our subsidiaries operate largescale, modern mining complexes in West ia, Wyoming, Colorado and Illinois. ...