A roo ffall occurred in the no. 4 belt entry of no. 1 north (2 breaks inby survey station no. 163. the fall measured approx. 45' long by 20' to 35' wide x 7' high. the area was mined in 1948 and is approx. 4 miles outby the altrp working section. the fall will be clean up. there were no injuries.