
 HISTORY
  UNKNOWN SOURCE--PILE APPEARED ON CHART 11317 PRIOR TO 1980 ì
EDITION POSITION SCALED FROM INSET OF CHART 11317 (1:20,000) ì
POSITION: LAT. 28-38-57N, LONG. 96-33-47W (ENT 12/87 GM)
  H10416/92-- OPR-K228-AHP; MULTI-PILE DOLPHIN, BARE 3.1 M