HISTORY
H9979/81--OPR-Z137-WH-81; WHALEBACK, STEEL, 308 FT L, SUNK 1908 AT ENTRANCE   
 DULUTH CANAL; 42.5 FT LD IN 70 FT. INVESTIGATION BY DIVER SHOWS WRECK IN TWO 
 SECTIONS. (REPORTED THROUGH 9/26/81 MONTHLY ACTIVITIES REPORT.)              
CL89/