The worst mining disaster in American history occurred on December 6, 1907, when an underground explosion at Monongah in Marion County killed 362 miners.
"All Hope Is Gone" (Monongah Mine Disaster)
"Scenes Around Mines Just After Disaster" (Monongah Mine Disaster)
List of Miners Killed at Monongah
Testimony Concerning the Monongah Mine Disaster
"The Monongah Catastrophe"
On This Day in West Virginia History: December