A rock fall measuring approx 20' long X 20' wide X 3' thick was discovered at 1:30PM on 2/19/10. The exact time of the fall is undetermined. The fall was located in the 9th crosscut inby the north portals in the #5 entry. The #5 entry was dangered off on all accessible entrances and the #4 entry will become the designated travel way and primary escapeway.