A roof fall measuring 50' L x 19' W x 8' H was discovered in the last open line of crosscuts between #6 and # 7 entries, 50' inby spad 68152. The fall occurred due to failure above the anchorage zone of 5' torque tension and 12' cable roof bolts. Ventilation and the transportation of miners' were affected. No injuries occurred as a result of the fall.