
 HISTORY
  CL1680/97-- DANGER TO NAVIGATION LETTER DATED 12/10/97 FROM ì
AHP (ILLG) TO CGD5. WHILE CONDUCTING A HYDROGRAPHIC SURVEY IN THE ì
UPPER CHESAPEAKE BAY (OPR-E346-AHP) AN UNCHARTED OBSTRUCTION WAS ì
LOCATED IN LAT. 38-49-24.00N, LONG. 76-26-2