The earliest portion of Towosahgy State Historic Site is in the southern half, where a Late Woodland period village once stood. Wilkie dates this component to about 400 to 700 CE.[6]
Later the site was fortified and built up as a Mississippian village with seven platform mounds, most surrounding a central plaza area. During this time, the site was surrounded by a palisade wall of vertical logs and a moat.[9] Like other Mississippian mound centers, Towosahgy also had a borrow pit from which earth was removed to create the mounds. The largest remaining mound in the complex is Mound 2, also known as the "temple mound". Excavations on this part of the site were conducted in 1989 by James Price.[10] The site was abandoned during the late 14th century for unknown reasons, as were many similar Mississippian sites in the region.
^ abcDuncan Wilkie (1988). Field Work at Towosahgy State Historic Site. Cape Girardeau, Mo.: The Center for Regional History and Cultural Heritage, Southeast Missouri State University. OCLC68738164.
^Missouri Archaeology Society (n.d.). "Towosahgy Site 23MI2". Missouri Archaeology Society. Retrieved January 1, 2017. (includes 7 photographs)
^John W. Cottier and Michael D. Southard (1977). An Introduction to the Archaeology of Towosahgy State Archaeological Site. Missouri Archaeologist. pp. 230–268.
^ abJames E. Price; Cynthia R. Price (1990). Archaeological Investigations in Three Areas of the Towosahgy State Historic Site, 23MI2, Mississippi County, Missouri, 1989. Columbia, Mo.: University of Missouri. OCLC68738170.