EE WAS OPERATING FRONT END LOADER TO REMOVE SNOW ON THE AGGREGATE BENCH OF THE CENTRAL QUARRY WHEN HE STRUCK A ROCK TOE WITH THE BUCKET IN THE SNOW. WHEN THE BUCKET STRUCK THE TOE, EE PITCHED FORWARD IN THE CAB & STRUCK HIS RT. FOREHEAD ON THE ROPS RESULTING IN A LACERATION. EE WAS WEARING A SEATBELT. THE LOADER HAS A LAP BELT.