    H11061/01-02--OPR-K379-KR;  LOCATED AN OBSTRUCTION, DESCRIBED AS CIRCULAR DEBRIS, IN LAT. 28/59/11.65N, LONG 094/45/38.80W (NAD83) WITH A LEAST DEPTH OF 59 FEET MLLW.  THE HYDROGRAPHER DID NOT BELIEVE THAT THE MULTIBEAM LEAST DEPTH WAS ACCURATE AND R