A Roof Fall occurred in the Main West #2 Entry, in the intersection of Crosscut #18. The fall is 20' Sq. with 1' to 5' of top falling. No-one was injured or entrapped. No Ventilation was interrupted or blocked. The Fall was Dangered-Off. Timbers &/or Roof Jacks were set to prevent access till the area can have new Permanent Roof Supports installed.