For now, the submerged stone circle in Lake Michigan stands as a testament to the ingenuity of prehistoric humans and serves as a reminder that many mysteries of our ancient past are still waiting ...

This lake was fed by an ancient river and is surrounded by a rich record of stone tools from the African Middle Stone Age (made between about ... Today, Narabeb is a landscape dominated by long sand ...

The Lake Superior region of America ... A great number of ancient tools have been found, they all consist of hard stone, with single and double grooves for the reception of handles, like those ...