 HISTORY
  NM21/58--A PILE DRIVER REPORTED SUNK ABOUT 100 YDS 024 DEGREES ì
FROM THE CENTER OF THE SWING BRIDGE. A LARGE RED FLAG ABOUT 8FT ì
ABOVE WATER MARKED THE CENTER OF THE PILE DRIVER. POSITION SCALED ì
FROM CHART 12366 (1:20,000). POSITION: LAT