Lost Dakota
small portion of land that was left over after the division of the relatively gigantic former Dakota Territory into five other states in the late 19th century
en-US/ˈlɔst dəˈkoʊtə/
en-GB/ˈlɒst dəˈkəʊtə/
small portion of land that was left over after the division of the relatively gigantic former Dakota Territory into five other states in the late 19th century