A navigation app that illuminates public land within privately held property

And note that this article is about a case where there were no roads but the hunters were there anyway. I'm definitely on the side of the corner-crossers, you don't get to control public land by land-locking it. I'd say the owner of the land that land-locks it gets to within reason decide the route that is permitted, but they have to grant it. And I would say that any corner like this should automatically become shared access to both owners of the corner (in this case one of those owners is public, but I would apply the same standard if both were private), they can move anything between their properties so long as they minimize the intrusion and neither can do anything to hinder the other's ability to do so.

Locally, we have an interesting hiking area that's been a matter of dispute for many years and it isn't even due to a hostile land owner. There is private land with an old mine inside a national recreation area here. Unfortunately, it cuts the only way you can reach a canyon without encountering terrain obstacles. Reportedly, somebody's car got damaged while parked there, their insurance company tried to go after the landowner and the landowner's insurance company responded by requiring him to keep people off the land (he hadn't cared about us hikers, our passage did not harm him.) There is also the issue of a couple of mineshafts that idiots (the timbers do not look safe to me!) like to explore. Some states have gone partway towards addressing this--exempting the landowner from liability for any natural hazards (hey, nature doesn't come OSHA-sanitized, us backcountry guys know we need to make our own safety evaluation of the situation!), but this doesn't deal with the issue of old mineshafts. I'd like to see it go farther, exempt the landowner for all natural or old hazards, they're only liable if they create a hazard.

Surely there is some altitude at which that doesn't apply? Otherwise there'd be problems with commercial jets too?