Blood Run Site

The Blood Run Site is an archaeological site on the border of the US states of Iowa and South Dakota. The site was essentially populated for 8,500 years, within which earthworks structures were built by the Oneota Culture and occupied by descendant tribes such as the Ioway, Otoe, Missouri, and shared with Quapaw and later Kansa, Osage, and Omaha (who were both Omaha and Ponca at the time) people. The site was so named on account of the iron-stained soil.

Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).