Chapman (1975:256) notes that Stone Square Stemmed points are found in Southwest and Northeast Missouri; the type site was flooded by the construction of Table Rock Reservoir. It is a medium to long bladed artifact with a straight stem. Chapman notes that length ranges from 50 to 130 mm; thickness is typically 8 mm to 12 mm. DeRegnaucourt (1991:171 - 172) illustrates similar/identical artifacts and classifies them as the Genesee point type; he notes that this artifact type is rare in the Ohio and Indiana. DeRegaucourt summarizes measurements from four specimens: Length = 59 to 62 mm, width = 28 to 31 mm, thickness = 9 to 19 mm and weight = 13.8 to 16.6 grams. The difference in length for specimens, east versus west of the Mississippi River, might suggest Genesse points are not the same type as Stone Square Stemmed points. Morrow (1984:90) notes that Stone Square Stemmed points are occasionally found in eastern Iowa. Chapman estimates the age of this tool type from 5000 to 1000 BC. Sandstrom and Ray (2004:11) did not recognize this point type in their study.
Stone Square Stemmed point from the Hayden site (23SL36).