An unintentional roof fall occurred at 75+30 in entries 1 and 2 in the 4H panel. The fall did affect ventilation because it took out a stopping between the intake and return. The fall did not affect passage of men or cause personal injury. The unit has been idle and is in the proccess of moving. The fall measured 100 feet x 18 feet x 4-6 foot high.
U.S. Mine Safety and Health Administration