SOMETIME BETWEEN 3/8 AND 3/11 A FALL OF GROUND ABOVE BOLT ANCHORAGE OCCURRED IN THE INTERSECTION AT THE ENTRANCE TO 2575 STOPE. IT MEASURES ~20' L X 10' W X 8' H. THE SUPPORT CONSISTED OF 7' S PLIT SETS & MATS IN COMBINATION WITH 17' L GROUTED REBAR BOLTS. THE REBAR BOLTS BROKE UNDER THE DEAD WEIGHT OF A WEDGE-SHAPED STRUCTURE THAT WAS NOT VISIBLE. THERE HAD BEEN NO MINING ACTIVITY