Again stumbling onto a captivating video, this 45-minute underwater exploration of a different American lake system shows what can be done with a concentrated electronic search of lake bottoms. With its somewhat misleading title, this video displays an exhaustive computerized study where use of rovers, side-scan sonar, and divers are featured.
At 16:00 minutes, long stone lines left by early native Americans 7000 years ago are studied. Why were the stones left at such depths?
Our lake has nothing like this, as the earliest Americans hadn't left any obvious signs of exploitation until ~3000 years ago. (That we know of).
The Lakes Region's runoff and silt have likely hidden features that would be useful in such studies.
Skipping to the end, another underwater feature displays the violence of storms found in our largest lakes. It's a familiar wreck—as you have never seen it before.
https://www.youtube.com/watch?v=VAo4qvP6o2E
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