Upper Mississippian culture
（重定向自Upper Mississippian）
![A map showing approximate areas of various Mississippian and related cultures, including the Oneota and Fort Ancient.](/Images/godic/202502/19/Mississippian_cultures_HRoe_20101839.jpg")
![](/Images/godic/202502/19/Fort_Ancient_Monongahela_cultures_HRoe_20101839.jpg")
Upper Mississippian culture, sometimes referred to as Upper Mississippian cultures (plural), is the archaeological designation for certain late prehistoric cultures of the indigenous peoples of eastern North America, located in the present day Midwestern United States region.