The Spring Creek Mine is located in Montana approximately 35 miles north of Sheridan, Wyoming. The mine extracts thermal coal from the Anderson-Dietz Seam, which averages approximately 80 feet in thickness. The Spring Creek Mine shipped approximately 19.1 million tons of low sulfur, 9,240 Btu coal in 2011. Coal mined from Spring Creek is shipped primarily to electric utilities and industrial customers in the northwest, midwest, northeast and southwest United States, various Canadian provinces and exported to Asian utility customers via the Westshore and Ridley terminals in British Columbia, Canada.

In 2005 and again in 2009 Spring Creek Mine received the Excellence in Surface Mining and Reclamation Award from the Office of Surface Mining. These awards recognized significant achievements in developing reclamation with hydrologic and biologic diversity and for intensive effort in establishing rare plants on reclamation.

Environmental Awards

Safety Awards