Where is coal mined in southwestern Wyoming?
Presently, coal deposits in the Rock Springs vicinity are being mined from the northeastern flank of the Rock Springs Uplift located in Sweetwater County, Wyoming. Two different operators are recovering coal from the Almond, Fort Union and Lance Formations; one operation is surface, the other is underground and surface. Coal mining also occurs near Kemmerer in Lincoln County, Wyoming. This deposit is composed of multiple coal seams in the Adaville Formation that dip steeply to the west. Due to this unique geologic setting, the operator has developed Wyoming’s deepest open-pit coal mine.Statistics: The BLM Rock Springs Office oversees management of approximately 42,000 acres of federal coal leases held by the four different operators. These operators are Bridger Coal Company and Black Butte Coal Company, both located to the east of Rock Springs, and P&M located near Kemmerer and Arch Coal, Inc., east of Hanna, WY. Annual combined output for these mine operations in 2006 exceeded 13.9 mi
