Michigan's hidden history: a secret Stonehenge? 
We know that the SS Edmund Fitzgerald is in Lake Superior.
But what else lurks under the waters of the Great Lakes surrounding Michigan? What secrets do they hold?
Perhaps evidence of Druids, petroglyphs and astronomical dioramas?
This is what some claim has been found and under-reported. From the depths of Lake Michigan archeologists have found what appears to be a circular arrangement of stones similar to those found at Stonehenge in England.
Stonehenge Beneath the Waters of Lake Michigan
In a surprisingly under-reported story from 2007, Mark Holley, a professor of underwater archaeology at Northwestern Michigan University College, discovered a series of stones – some of them arranged in a circle and one of which seemed to show carvings of a mastodon – 40-feet beneath the surface waters of Lake Michigan.
If verified, the carvings could be as much as 10,000 years old – coincident with the post-Ice Age presence of both humans and mastodons in the upper midwest.
Underwater images from a Lake Michigan Stonehenge!
Another Stonehenge Discovered Under Lake Michigan?
A group of researchers using sonar to find shipwrecks on the bottom of Lake Michigan have found something far older than crashed cargo ships. They believe they've found a 10-thousand-year-old stone structure like Stonehenge, including a rock carved with the image of a mastodon.
The region already has its share of petroglyphs from ancient tribes and other standing stone sites. These submerged stones could have been raised by local populations at a time when part of the lake bed was dry, in the late Ice Age. More research is needed to determine whether these stones were arranged by humans, or merely look that way.
