I've been to the same land that I recently received permission on the past two nights. I found one not so desirable native flint relic, that is the majority of my hunting but I also always look for fossils so... here you go
There are two separate fossils here in case anyone was wondeting
The fossils in the first image appear to be brachiopods, almost certainly Paleozoic in age.
Depending on whether you are south or north of the Effingham Terminal Moraine, the fossil brachiopods are likely to be Mississippian (south) in age . . . OR (north) they could be much older glacial erratics carried by the glaciers down from Canada.
The images of the other things don't allow for reliable identification.