A roof fall occurred on the 16th West retreating longwall headgate entry, inby crosscut 34. The fall was approx. 20 feet wide by 20 feet long, approx. 2 to 4 feet high. The roof sagged down on the stage loader impeding travel. Primary support was 7 foot resin bolts with additional 10 foot cable bolts between each row of bolts. Additional supports were installed in the area.