9,000-Year-Old Stonehenge-Like Structure Found Under Lake Michigan
Archaeologists found something much more fascinating than they got credit for when searching under the waters of Lake Michigan for shipwrecks: they uncovered a rock with a prehistoric carving of a mastodon, as well as a collection of stones arranged in a Stonehenge-like manner.
Gazing into the water
In modern archaeology, the use of remote sensing techniques is common: scientists regularly survey lakes and soil for hidden objects.