A database of 675 historic Indian locations in Iowa illuminates some of the broader trends of population movement during the periods of Euro-American exploration and American settlement. The data are varied, consisting of recorded archaeological sites combined with Indian accounts gleaned from digital archives such as local histories and newspapers. Insights derived from analysis include the placement of the 1825 Neutral Line as a possible cause of the myth of the Dakota as an overly aggressive tribe and the poorly documented eastward expansion of Potawatomi into Iowa after 1840. The database can aid future investigations in historical research, archaeology, and tribal range and affiliation.

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