50950
HISTORY
H9671/77--OPR-411-FA-77; 1:5,000; ITEM 15; 4 SUBM PILES IN LAT 33-46-08.4N    
 LONG 118-13-58.2 WERE SEARCHED FOR VISUALLY, BY FATHOMETER AND BY OTTERBOARD 
 SWEEP WITH NEGATIVE RESULTS; 6 EXISTING DOLPHINS WERE CONFIRMED;