The U.S.S. Grunion is a World War Two-era U.S. Navy submarine which sunk off Alaska's Aleutian Islands in 1942, killing 70 crewmembers. In early October 2008, the Navy confirmed that wreckage found off the Aleutian Islands was that of the long-missing Grunion.FOX News: U.S. Navy Confirms Lost WWII Sub Found Off Aleutians (October 3, 2008)