Face of #4 Entry in the South Main Section at 1950 outby to 18+57. There was 8' cable bolts in the inter. 19+23. The fall was about 8' high just above ankorage zone. The fall measured approx. 100' long. According the the report from prep-foreman, the roof started working in the inter. 19+23 and the face of #4. They went for cribs & approx 15 minutes later it was on the bottom.