Chapman (1975:306 - 307) notes that Cahokia Notched points are found across the Ozark Highland Region. The type site for this artifact is Cahokia Mounds in Collinsville, Illinois. Chapman notes that length ranges from 13 to 35 mm with the average of 26 mm. Chapman associates Cahokia points with the Mississippi Period from AD 900 to 1450. Morrow (1984:86) observed that are uncommon in Iowa. Sandstrom and Ray (2004:31) discusss the minimal differences between Cahokia points (three notched) and Huffaker (three prominent notches and serration-like notches along the sides of the stem).
Cahokia point from the Thornhill Site (23SL220)...Cahokia point from the Cloverdale Site (23BN2)
1975 The Archaeology of Missouri, I. University of Missouri Press, Columbia.
1984 Iowa Projectile Points. Office of the Iowa State Archaeologist, Iowa City.
Sandstrom, Carl B., and Jack H. Ray
2004 A Point Identification Guide for Southwest Missouri. Ozarks Chapter of the Missouri Archaeological Society, Springfield.