when it comes to squatting in a national forest, i think the rule is something like you have to move camp every week or so or maybe even every two weeks, but im not sure, id look it up but im lazy. Also anywhere in a national forest is fair game to camp in, unless its specifically posted that's there no camping in that area. The rules also change if you camp in their designated camp areas, i think you would have to register and probably pay a small fee, but why bother camping there when there's a whole forest open to you (plus those bathrooms at those sites you can smell from a mile away). This only applies to the national forest, not notional or state parks, or forested areas owned by other government agencies, or forested land owned by a private entity.