LNM13/89--  " A 5X15FT BARGE WAS REPORTED SUNK ON 11 MAY, IN SUPERIOR BAY, OUTSIDE OF THE SPECIAL ANCHORAGE AREA IN APPROXIMATELY POSITION 46 45 05.5  92 04 30.0.  THE BARGE IS COVERED BY 2FT OF WATER AND IS MARKED WITH PLASTIC JUGS.  CAUTION ADVISED."
