U.S. Bureau of Mines

December 6, 1907: The Monongah Mine Disaster Occurs in Marion County

Dec 6, 2017
Fairmont Coal Company’s No. 6 and 8 mines at Monongah in Marion County
Appalachian History.net

On December 6, 1907, a massive explosion ripped through the Fairmont Coal Company’s No. 6 and 8 mines at Monongah in Marion County. The powerful blast killed at least 361 men, and that number is likely low due to poor record keeping. It was the worst mine disaster in U.S. history.