ROOF FALL (7000-1-018-06) : LOCATION - Main E Return, Crosscut #103. DIMENSIONS - H:6', W:19', L:30'. GEOLOGY - Soft, medium to dark gray shale with prominent roof jointing or slips in roof. ROOF SUPPORT - 5' Fully grouted bolts. The area was mined in June 2004. Prominent roof jointing in the roof were the apparent cause of the fall.