Unintentional roof fall discovered 1/9/08 during weekly inspection. Fall located in No. 11 Zone, 18 Block, Xct 8-9 one block inby station 680, No. 9 entry. Fall previously supported with 6' full grout resin bolts. Area mined on or about 10/21/06. Fall measured approximately 17'W X 6.5'H X 15'L.