where north dakota located?
Midwestern United States United States of America Contiguous United States United States, with Territories
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 = = = Northeastern United States and Canada = = = 

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 The new survey included Alaska and Hawaii , which have large populations of indigenous people ; while the 2004 survey only included the contiguous 48 states . 

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 North Dakota — February 14 , 1913 

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 In 1803 , the United States purchased the Louisiana Territory , an area that included most of South Dakota , from Napoleon Bonaparte , and President Thomas Jefferson organized a group commonly referred to as the " Lewis and Clark Expedition " to explore the newly acquired region . In 1817 , an American fur trading post was set up at present @-@ day Fort Pierre , beginning continuous American settlement of the area . In 1855 , the U.S. Army bought Fort Pierre but abandoned it in 1857 in favor of Fort Randall to the south . Settlement by Americans and Europeans was by this time increasing rapidly , and in 1858 the Yankton Sioux signed the 1858 Treaty , ceding most of present @-@ day eastern South Dakota to the United States . 

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 = = = Fort Snelling and the establishment of Minneapolis and Saint Paul = = = 
