An unintentional roof fall occurred in the 2nd SE panel, #6 Unit,#3 Entry and inby the last open crosscut. The area of the fall included both a recently mined, unbolted cut and where roof bolts prev. had been installed. The fall stopped prior to reaching the outby section. The fall meas. approx. 70'L. X 20'W. and 12'-15' H.