Pre-shift and mine examiner found fall on weekly check-fall in #6 hd. (3700' outby face and adjacent to #5 hd. belt) No blockage of Vent. Escapeways no injuries and no equipment. involved. Breakered off and dangered-plotted on mine map and will not be cleaned up. App. 5' to 6' high, 18' wide and 25' long