
 HISTORY
  CL1680/97-- DANGER TO NAVIGATION LETTER DATED 12/10/97 FROM AHP ì
(ILLG) TO CGD5. WHILE CONDUCTING A HYDROGRAPHIC SURVEY OF THE ì
UPPER CHESAPEAKE BAY (OPR-E346-AHP) AN UNCHARTED OBSTRUCTION WAS ì
LOCATED IN LAT. 39-49-15.24N, LONG. 75-28-1