

HISTORY
D71/87--OPR-E609-RU/HE-AUG/87; OBSTRUCTION LOCATED IN LAT 38-51-57N,  
 LONG 76-26-12.2W WAS DETECTED DURING OFFICE PROCESSING AND WAS NEITHER  
 VERIFIED NOR DISPROVED BY THE FIELD PARTY. THE OBSTRUCTION IS AN ECHO  
 SOUNDER DEPTH OF 29