A roof fall measuring 70' long 18' wide 6' thick was found in the return air course 11,000' from the active section. The area developed March 97 with 4' resin roof bolts. Laminated coal/rock streaks above the anchorage zone caused the fall. It did not impede travel, disrupt ventilation, and no injuries occurred. Entrances to the fall was barricaded and resupported with jacks.