EMPLOYEE WAS OPERATING A CONTINUOUS MINER & WAS IN THE PROCESS OF CLEANING UP THE #8 HEADING. HE WAS STANDING BETWEEN THE 3RD & 4TH ROW OF BOLTS FROM THE FACE WHEN A PIECE OF DRAW ROCK FELL FROM BETWEEN THE BOLTS STRIKING HIM ON THE HEAD & COMING TO REST ON HIS RT. FOOT. THIS ACTION CAUSED A FRACTURE OF 2 OF HIS TOES ON HIS RT. FOOT. THE ROCK MEASURED 52""LONG X 23""WIDE X 2""THICK.