 HISTORY
  NM25/61--6/24/61; A 5 PONTOON BARGE REPORTED SUNK IN 22 FT OF ì
WATER WITH 14 FT OF WATER OVER IT ON THE WEST SIDE OF PRUDENCE ì
ISLAND; PA LAT 41-36-47N, LONG 71-20-25W.
  H6859/62-63AD.WK.--WIRE DRAG SURVEY CONDUCTED IN VICINITY OF OBSTR