Black Thunder Coal Mine

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The Black Thunder Coal Mine is a surface coal mine in Wyoming, located in the Powder River Basin which contains one of the largest deposits of coal in the world. Black Thunder is the second most productive mine in the United States, providing the U.S. with eight percent of its coal supply. In 2011, the America Revealed “Electric Nation” episode aired on PBS and features Morrison Knudsen’s contribution to the development of Thunder Basin’s Black Thunder coal mine.