This would make it the oldest documented site of human occupation in the upper Midwest. There were also artifacts such as antler-scrapers dating back to six to seven thousand years ago. Evidence indicates that the shelter was used only periodically at first, perhaps as a hunting or seasonal camp.
It would be considered the most ancient documented location for human settlement in the upper Midwest region. Alongside these artifacts were antler scrapers that originated from 6,000 to 7,000 years ago. The shelter was initially utilized intermittently, possibly as a hunting or seasonal encampment.