Chapman (1980:309 - 310) notes that Madison points are found throughout Missouri; he prefers the term "Mississippi Triangular." Chapman notes that length ranges from 12 to 50 mm with the average of 20 to 35 mm. DeRegnaucourt (1991:74 - 78) notes that this artifact type is found in the eastern United States and summarizes measurements from fifty specimens: Length = 18 to 49 mm, width = 12 to 29 mm, thickness = 3 to 6 mm and weight = 0.8 to 6.0 grams. Chapman associates Madison points with the Mississippi Period from AD 900 to 1400. Morrow (1984:80) observed that Madison points are common in Iowa.
Sandstrom and Ray (2004:41) cite five radiocarbon dates from the Dahlman Site (23LA259) ranging from AD 1470 +/-60 to AD 1620 +/- 40.
Madison point from the Utz Site (23SA2).
1980 The Archaeology of Missouri, 2. University of Missouri Press, Columbia.
1991 A Field Guide to the Prehistoric Point Types of Indiana and Ohio. Upper Miami Valley Archaeological Research Museum, Ansonia, Ohio.
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.
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