Raw Material Use
By looking at the raw materials used to make chipped stone tools, archaeologists can often learn about how groups moved across the landscape. Some archaeologists define "locally available" raw material sources as those that are within 4 miles of a site. Sources located from 4 to 40 miles away are considered "nonlocal," and resources located more than 40 miles away are considered "exotics."
When archaeologists looked at the distribution of Paleoindian points from sites in Marion County, they found that most of the early Paleoindian points were made from high-quality nonlocal or exotic cherts from areas such as the Falls of the Ohio River. But when they looked at the unfluted points, they found that most were made from locally available cherts.
This change in chert use may reflect an increase in the area's population and evidence for Native groups moving within smaller territories. Perhaps by the end of the Paleoindian period, some groups had taken up permanent residence in the upper reaches of the Rolling Fork and Beech Fork drainages.