A roof fall was discovered at the #4 Mains Section (#4 Heading, #20 Crosscut). The fall measured 16' x 16' x 8'. The area was bolted with 6' SuperTwist bolts and 12' cable bolts. No equipment was damaged. No ventilaitn was disrupted, but the intake travelway was impeded for a brief time. No one was injured as a result of the roof fall.