 Also known as "king clam", geoducks are considered to be a delicacy in Asian countries.George Vancouver explored Puget Sound in 1792, and claimed it for Great Britain on 4 June the same year, and naming it for one of his officers, Lieutenant Peter Puget.After 1818 Britain and the United States, which both claimed the Oregon Country, agreed to "joint occupancy", deferring resolution of the Oregon boundary dispute until the 1846 Oregon Treaty.