WHILE TRAVELING 70MPH VEHICLE STARTED TO VIBRATE. THEN A LOUD NOISE WAS HEARD. LOST CONTROL OF VEHICLE. IT SWERVED LEFT/ RIGHT & THEN VEHICLE FLIPPED OVER INTO A RAVINE. HIGHWAY PATROL NOTICED TREAD HAD LEFT THE LEFT REAR TIRE. TIRE WAS BALDED, BUT STILL INFLATED. NO INJURIES. VEHICLE WAS DECLARED TOTALED. HAVE THE POLICE REPORT. *AK