At approximately 3:30 p.m., an unintentional roof fall was found in the left return at 3 North Break 12, between spad numbers 0663 and 0662. The roof fall measures approximately 4 ft thick x 18 ft wide but does not impede ventilation. Notifications were made to MSHA and the WVMHST Hotlines. The area has been dangered off, and a ventilation revision is currently being prepared.