Archaeologists Have Found Prehistoric Rock Structures Under the Great Lakes. Here's What the Stones

[wnylib]

8. Early people in North America

lived on the southern edge of the glaciers as they moved eastward from their entry point into North America, for reasons pointed out in the article. The edges of glaciers were rich in meltwater streams, ponds, fish, plants, and game animals.

The region mentioned in the article, around Lake Huron, is also where the ancient Copper Culture of North America existed 9000+ years ago - oldest copper working site in the world.

I'm guessing that some other ancient archaeological sites probably exist where the edges of glaciers used to be, going horizontally, roughly west to east, across the US and Canada. Maps of the extent of those glaciers would point out where to look today. Some got flooded by glacial melt, like in the Great Lakes region. Others might still exist where glacial streams used to be, now dried up.