VESSEL 1 WAS A 16'6" BAYLINER OPEN MOTORBOAT WITH 2 PEOPLE ON BOARD AND 2 PEOPLE BEING TOWED ON A TUBE.  VESSEL WAS PULLING A TUBE WITH 2 RIDERS, TUBER 1 FELL OF THE TUBE.  THE OPERATOR  TURNED THE VESSEL AROUND TO PICK UP TUBER 1, WHEN THE VESSEL TURNED AROUND THE OPERATOR DID NOT SEE TUBER 1 IN THE WATER AND ACCIDENTALLY HIT HIM WITH THE VESSEL.  TUBER 1'S UPPER BODY HIT THE FRONT OF THE VESSEL WHILE HIS LEG WAS UNDER THE VESSEL.  AS THE VESSEL TRAVELED OVER TUBER 1, THE PROPELLER HIT HIS LEG CAUSING SEVERAL SEVERE LACERATIONS.  TUBER RECEIVED EMERGENCY MEDICAL CARE FROM NPS RANGERS AND WAS TRANSPORTED BY HELICOPTER TO UMC MEDICAL CENTER.  NO OTHER INJURIES WERE REPORTED AND NO DAMAGE WAS DONE TO THE VESSEL.
BOULDER CITY                  