A roof fall occured in the 1 main east entries at cross-cut 25 in the intersection of #3 entry and proceeding thru the intersection of the #2 entry measuring 80ft. x 19ft. x 6ft-9ft. This area was mined in May 2004 and supported with 6ft. tension rebar bolts and 9ft. mega bolts. The fall was caused by an undetected slip.