A roof fall 60'L 18'W and 6'H was discovered during an exam. It was 1500' from an active section, did not impeade travel, ventilation, & no injuries occurred. The fall was in the old 1st left panel off the west mains # 6 entry inby spad 58744 and was developed Nov 07. 5' torque tension bolts were used. Laminated shale and rock above the anchorage zone was a cause