  H8420,1958, DEPICTS A SEVEN-FOOT SOUNDING AT LAT. 47 11¿56"N, LONG. 123 47¿34"W NAD 27
  F00430/96-97--OPR-N219-PHP;  THE SUBMERGED ROCK WITH A DEPTH OF ONE FOOT CHARTED AT LAT.46 11¿54.02"¿, LONG. 123 47¿37.05"¿W. WAS DEVELOPED WITH A DRIFT AND WITH