Fall extended above anchorage point, reported to be 6 to 8 feet high and the immediate roof appeared to be laminated shale with slickensides. Fall occurred at No.17 Break of No.4 Belt between spad 1400 and 1409, between No. 2 Entry and No.3 Entry. Dimensions: 17 to 18 feet wide and 20 to 30 feet long.