Want to get out there for real one more time this summer, but I have no idea where I can camp in a secluded space. I don’t want to drive too far from Northwest Indiana, so I would prefer something in Northern or Central Indiana (I know that cuts out a lot of options for me, but I just want to know if there’s anything like that near me)
Sorry, the furthest north public land with dispersed camping is Morgan Monroe Forestry.
Your best options for real secluded camping in N Indiana is a private land owner or catching a lucky spot at a for profit campground with no neighbors.
Dispersed camping on public lands map: https://gisdata.in.gov/portal/apps/webappviewer/index.html?id=fa241937d1e84c9cbb91aba208c578d5