
 SURVEY REQUIREMENT COMMENTS
  SEARCH AREA IS LIMITED TO NORTH OF THE CORPUS CHRISTI CHANNEL
 
 HISTORY
  UNKNOWN SOURCE--SUBM PILE, SCALED FROM CHART IN LAT. ì
27-48-42.5N, LONG 97-14-21W. (ENT. SRB 12/87)
  H10326/90-- OPR-K229-AHP; 50-METER DIV