North of Vermillion, SD a dreamy fog settles in around the base of Spirit Mound. Winter 2010
From the journal of Clark on the Native American legend surrounding this site:
“. . and by the different nations of Indians in this quarter is Suppose to be the residence of Deavels. That they are in human form with remarkable large heads, and about 18 inches high, that they are very watchful and are arm’d with Sharp arrows with which they Can Kill at a great distance; they are Said to kill all persons who are So hardy as to attempt to approach the hill; they state that tradition informs them that many Indians have Suffered by these little people.So much do the Maha [Omaha], Soues [Sioux], Ottoes [Otoes] and other neighboring nations believe this fable, that no Consideration is Sufficient to induce them to approach the hill. One evidence which the Inds give for believing this place to be the residence of some unusial Spirits is that they frequently discover a large assemblage of Birds about this mound . . . "
More information here at Spirit Mound