
 HISTORY
  UNKNOWN SOURCE--PIER IN LAT 45-59-41N, LONG 83-52-08W.  (NAD ì
27).
  TP00361/84--REV-CLASS III; PIER NOT SHOWN.
  H10313/89-OPR-X278; PIER NOT INVESTIGATED.  RETAIN AS SUBM PIER ì
RUIN.  (ENTERED 11/91 RWD)