
 HISTORY
  H08910/66-- OPR-412;  SMOOTH SHEET DEPICTS A -0  DEPTH ENCLOSED BY THE 0-DEPTH CURVE IN LAT. 48-05-00N, LONG. 122-44-15W. THIS LOW WATER FEATURE MAY HAVE BEEN CHARTED INCORRECTLY WITHOUT  GREEN TINT (INDICATING AN AREA BARING  AT MLLW).  TH