Map of Prairies from Midwestern Regional Climate Center, “Living With Weather, Wildfires”: http://mrcc.isws.illinois.edu/living_wx/wildfires/index.html

Source: WikiWand, “Dakota (people)”: www.wikiwand.com/de/Dakota_(Volk) Retrieved 8-4-2017. Note: Some names found throughout this map may be spelled according to their Indo-European designation.