FALL OF ROOF OR BACK at Lone Mountain Processing LLC
A roof fall was discovered on this date. The fall was located on the 3-North-1 Mains at crosscut #9 in the number 4 entry. The fall measured 16' by 18' and was 5-7' in thickness. The fall was originally supported with 5' hi-tech bolts and 8' cable bolts. The primary escape way was rerouted and all employees were notified of these changes.
U.S. Mine Safety and Health Administration