Ancient Stonehenge-like structure found in Lake Michigan
Been there quite a few times. It is believed to be a meeting sight for the tribes in the area. The copper artifacts found are from copper mined in Minnesota confirming that there was a trade route following the Mississippi river at the time.Here's something that you may find interesting.
Not very many south Louisiana people know this, but one of the oldest Native American communal sites is Poverty Point in north Louisiana.
The site is estimated to be around 3,400 years old.
https://www.povertypoint.us/
