A ROOF FALL HAS OCCURRED IN THE SOUTH MAINS A BELT AND TRACK ENTRY IN THE AREA OF SURVEY STATION NO 9871. THE FALL IS APPROX 24 FT WIDE BY 100 FT LONG AND IN EXCESS OF 15 FT HIGH. THE MATERIAL S IN THE FALL CONSISTED OF MOSTLY LIMESTONE AND SHALE. A VARIETY OF ROOF SUPPORTS HAD BEEN USED IN THIS AREA INCLUDING SEVERAL DIFFERENT LENGTH OF RESIN GROUTED BOLTS AND ROOF GROUTING.