 HISTORY
  H10505/93-- OPR-I173-MI; SIDE SCAN SONAR CONTACT. DIVERS DESCRIBE A CEMENT MOORING ANCHOR IN 13 METERS OF WATER. LL LD OF 9.7 METERS AND FATHOMETER LD OF 9.2 METERS. 3.35 METERS PER SIDE TAPERING UPWARD TO 1.82 METERS PER SIDE. SEVERAL LARGE