ON 5-15-03 EE WAS OPERATING A ROOF BOLTER INSTALLING ROOF BOLTS WHEN A PIECE OF ROCK 24""X14""X1"" THICK FELL OUT FROM THE IMMEDIATE MINE ROOF STRIKING THE EE ONT HE LEFT RING FINGER CAUSING A FR ACTURE AND A SERIOUS LACERATION TO THE FINGER. THIS ACCIDENT OCCURRED IN THE FACE AREA OF THE #3 ENTRY IN THE MMU 003 WORKING SECTION.