RedactedNarrative: OPERATOR AND PASSENGER WERE FISHING.  PASSENGER WAS IN THE BOW OF THE BOAT.  OPERATOR STARTED TO MAKE A SLOW LEFT HAND TURN WHEN PASSENGER SUDDENLY STOOD UP AS IF TO GET SOMETHING AND IN DOING SO, TRANSFERRED HIS WEIGHT TO THE LEFT SIDE OF THE BOAT.  THE OPERATOR WAS ALSO SITTING ON THE LEFT.  WITH ALL THE WEIGHT ON THE LEFT SIDE, WATER CAME IN OVER THE STERN AND CAPSIZED THE BOAT.  OPERATOR STAYED WITH THE BOAT.  PASSENGER TRIED TO SWIM TO SHORE, BUT WAS UNABLE TO MAKE IT AND WENT UNDER.
NameOfBodyOfWater: UPPER SUNSHINE RESERVOIR
NearestCityTown: MEETEETSE                     