On 2-South #4 hdg - 7 bl fall approx 6'-7' high x 17' w x 40'-60' in length. Cover approx 250' area bolted with 5' resin bolts. The hdg was mined between a full, partial pillared block & solid block of Pittsburgh coal causing roof condition problems in seam. Affected area has been rebolted with 10' & 12' cable bolts & 6' 3/4"" resin bolts & boards. Hdg width narrowed down also.