Wyokid - first off welcome to the site. Second, very nice collection. You've found some good ones and won't have any problem finding points in Illinois. You're going to want to head south or west. Find bottom land plowed fields near a river or creek. With these fields look for small elevation changes and hunt those. I'm thinking they're generally dryer so were more habitatable and being higher they erode instead of collecting deposit. Knock on a few doors and you'll be good to go. I'm thinking if you get ~1 hour outside the city in any direction other than NE you'll be in a good place. I move a lot and know it sucks to always have to learn a new region, meet new people, find new spots, but it can be done and you're in a very good spot to do it. Good luck.