A roof fall has occurred in the 1st sub-panel south east at 26+60 in #7 entry. The fall measured approximately 45'x 20'x 8.5' and was caused by an undetected slip in the mine roof. The area was supported by 5' fully grouted glue bolts and was mined in December 2011. There were no injuries and ventilation and the passage of men were not affected.