
 HISTORY
  H11140/02-- S-G913-WH; SIDE SCAN SONAR LOCATED AN UNCHARTED OBSTRUCTION. SWMB LD OF 39.85 FEET (12.145 METERS) IN LAT. 31-58-32.700N, LONG. 80-42-17.128W. RISES OFF THE BOTTOM APPROX. .6 METERS AND MEASURES APPROX. 4 X 3 METERS. HYDROGRAPHE