AT 6:30 AM ON 10/07/05, EMPLOYEE REPORTED ROOF FALL ON 001 SECTION. FALL WAS FROM ENTRY #5 TO #3 LEFT. THE FALL WAS 20'WIDE X 220'LONG X 13'HIGH. THE ROOF CONDITIONS WERE SLATE & SANDSTONE MIX, THE RIDER SEAM WAS 13' ABOVE MINING HEIGHT. ROOF SUPPORT WAS 48""RESIN & 8'CABLE BOLTS. INSPECTOR FROM MSHA & OMSL INVESTIGATED THE FALL.