Not really true from a snowmobiler's perspective reading maps or GPS.
Because all we need to care about for this issue is the very clear line where public land meets private land. That's it. Land is very rarely is sold by the US Government to private individuals in the U.P. As an example: With very few exceptions, if you are riding Ottawa National Forest land, and utilizing a map that was created back in the 1970's, that map is most likely STILL accurately depicting the boundaries of Ottawa National Forest land today.
There are indeed some exceptions to this, but likely very few...
It is quite obvious that private land changes hands all the time. But it was private then, and it is still private now. Therefore is was, and still is, off limits, and it appears the same to us on both new and old maps. So nothing ever really changes there either from a snowmobiler's perspective.
It's remarkably simple for educated and responsible humans. If someone wants to ride off-trail, just do it on public land where it is legal....there are quite literally millions of acres in the U.P. where this is permitted, and the lines where these areas start and end show very clearly on many maps.
