An unintentional roof fall was discovered 30 feet outby spad #985 in the #6 entry (return). Size of fall was estimated to be (50'L x 20'W x 4'-5'H.) Area had been supported with 4' fully grouted resin bolts with supplemental support consisting of 10' cable bolts in the intersections. No injuries, no equipment caught, ventilation not interrupted. Fall will not be cleaned up.