Roof fall was discovered on E-mains #6 entry @ #9 cross-cut spad #80. Outby section and loading points. Developed Sept. 2005. 190' coverage. Area bolted with 6' double lock bolts, 7/8"" dia. grade 75, 8x8 inch roof plates with roof screen installed. Fall measured 25' long, 20' wide x 9' high. No injuries or equipment involved. No ventilation or escapeway blockage.