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About the Wyodak Mine

In operation since 1923, Wyodak Resources Development Corp. is the oldest operating surface coal mine in the United States and the oldest coal mine in the Powder River Basin. A subsidiary of Black Hills Corporation, the Wyodak Mine is located near Gillette, Wyoming.

The Powder River Basin is one of the largest coal reserves in the United States. Coal remains an important fuel source for electric generation in the United States and will remain so for the foreseeable future. The Wyodak Mine produced approximately 5.7 million tons of coal in 2011, and has coal reserves of 256.2 million tons.

The Wyodak Mine employs approximately 80 employees and is currently permitted to mine 6,032 acres of land.


Wyodak Mine