  UNKNOWN SOURCE--SUBM WK, APPEARED ON FIRST EDITION OF CHART IN ì
1953.
  CL279/78--CAS18659(1977)-OPR-511-DA-77-ITEM 21; SUBM BARGE ì
POSITION GIVEN IN LAT 38-03-46.6N, LONG 121-52-02.4W. DIVER DEPTH ì
OF 14.3 FT AT MLLW (PRED TIDES) TWO WIRE DRAGS