ROOF FALL (7000-1-020-06) : LOCATION - MW#1 Roadway, between Crosscut #9 and #10. DIMENSIONS - H:6', W:19', L:80'. GEOLOGY - Soft, medium to dark gray shale. ROOF SUPPORT - 6' Conventional bolts. The area was mined in March 1983. Cutters and draw slate were present in the roof.