Numerous stone arrowheads have been excavated within the region and can be traced to the Clovis people, as well as the Plano people. Although no habitation sites have been discovered within the township boundaries, it is suggested that these cultures must have hunted in the Edwardsburgh/Cardinal area during this time. The Clovis arrows found within the region vary greatly, and reflect thousands of years of the Clovis people's progression and a changing environment. The earlier weapons were short dart-points, while two to three thousand years later, the Clovis people were mostly carving stone spear-points. This is indicative of an increase in larger game animals migrating into the area. There is little evidence of these cultures ever existing, as their footprint on the land was virtually invisible, and the population density during this period was very low. No human remains have survived from this time period making it impossible to determine the physical appearance of the cultures.