It's the only Great Lake entirely within the U.S.
... Wisconsin Sea Grant is guided by a 2014-17 Strategic Plan outlining its 
approach .... it is the only Great Lake that lies entirely within the boundaries of the 
U.S.... [DOC] [TLE] Great Lakes | Map | Picture | Five Lakes | Lake Superior | Ontario ... [PAR] Lake Superior is also the deepest of the Great Lakes; it's 1,302 feet (397 m) at it's 
... largest of the Great Lakes and the only one entirely within the United States.