An unintentional roof fall occurred at the #6 entry at station 8+40 on the 2nd north main off of the 3rd west submain (return). The fall did not affect ventilation or passege of men. The fall was timbered off and dangered off and will not be cleaned up. It measured 75 feet x 75 feet x 7 feet high. It had previously been supported with 4 foot fully grouted roof bolts.