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united states mine rescue association
Mine Disasters in the United States
Ten Worst Mining States
Also Examine the Ten Worst Mining Counties
Rank State Total Disasters Total Killed Deadliest Accident
1 Commonwealth of Pennsylvania 199 3,411 Darr  (239)
2 State of West Virginia 106 2,694 Monongah Nos. 6 and 8  (362)
3 State of Colorado 54 1,021 Hastings  (121)
4 State of Alabama 41 999 Banner  (128)
  State of llinois 41 1,095 St. Paul No. 2  (259)
6 Commonwealth of Kentucky 39 495 West Kentucky No. 7  (62)
7 Commonwealth of Virginia 33 696 Laurel  (112)
8 State of Oklahoma 27 604 Osage No. 11  (100)
9 State of Montana 22 455 Granite Mountain  (163)
10 State of Utah 20 605 Winter Quarters No. 1, 2  (200)
Ten State Totals 582 12,075  
A mining disaster is defined as an incident with 5 or more fatalities.  Unofficially, the USMRA database includes 78 accidents, each resulting in four fatalities, which can be found listed here.  We make no claim that these are the only accidents having 4 deaths that have occurred.  Source: MSHA Fatality Archive Database.


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View the Mine Disaster Historical Markers we've located.