It's certainly an interesting area and seeing the evidence of that area previously being under an ocean is interesting as we see similar evidence in Southern Indiana and down through Kentucky. That part of the country is part of my bugout plans if we get nuked. I could make my way up Lake Michigan by boat if need be. Get to that area and go into Lake Huron or traverse up to Lake Superior and go way up North or Way West on it while the major cities deal with nuclear fallout.
I've never been to that part of Indiana, but I have been to Hocking Hills in Ohio and the Mammoth Cave Area of Kentucky as well as outside of Lexington, so I know what you are talking about. I have a feeling a lot of people would be thinking the same thing. My buddy has some property in the UP, but I think getting my trailer up there would be impossible.
Certainly could be different levels of damage. If the roads are all blocked I would go to my parent's house first because there is a flowing fresh water well there. If that's not a good spot we might have to make it to lake Michigan on ATVs and then highjack a boat to go up North on the Lake.
My parents gave an old well too, so that is always an option. Too many people too close for my liking there though.
Hard to say how bad it could get. Obviously there could be different levels during some sort of attack. It seems like I would be outside of initial blast radius.
Could be an Alien attack. 👽 Or another virus modification situation. Have to be ready for anything.
I live right by a major chemical plant, so there is a good chance I wouldn't even have a chance...