wapitibob
WKR
The section was probably a DOT parcel when the first OR map was made, then was traded to the current LO in a swap. Unless OnX gets a list of ownership changes on a scheduled basis they would have no way to stay on top of them.
If it were me, I'd document everything along with names of people you've spoken to at the various agencies. Sounds like you've certainly done due diligence. Even if it comes back that it being private and they cite you, I'd fight it just on principle or at least talk with the land owner with hat in hand about dropping charges, showing your intent was never to trespass. Never appear before a judge with a chip on your shoulder, but with a respective attitude showing your intent was never malicious. By letter of the law that may not get you out of it but you will feel better having tried. And like was posted above, some states require it be posted if it was private. That's NOT the case where I'm at in Nebraska but it's 99% (??) private land here.
I regret having not had my wife fight a speeding ticket 15 years ago that was false. My wife never speeds and had never had a ticket of any kind. After being stopped at a red light she was allegedly clocked one block later doing 56. I was with her and saw the cop when at the light and said watch your speed in the next block. When she got pulled over I thought maybe she had a tail light out or something and then cop says you're doing 56 in a 25! I got pissed, which didn't help matters... Nothing worse than being ticketed for something you didn't do. Only pleasure we got from that was the cop was later fired for many "issues" and left town. Moral of the story, plead your case if it comes down to it or possibly live with the regret of not trying.
(3) Enter or remain unlawfully meansa) To enter or remain in or upon premises when the premises, at the time of such entry or remaining, are not open to the public or when the entrant is not otherwise licensed or privileged to do so;
(b) To fail to leave premises that are open to the public after being lawfully directed to do so by the person in charge;
(c) To enter premises that are open to the public after being lawfully directed not to enter the premises; or
(d) To enter or remain in a motor vehicle when the entrant is not authorized to do so.
(4) Open to the public means premises which by their physical nature, function, custom, usage, notice or lack thereof or other circumstances at the time would cause a reasonable person to believe that no permission to enter or remain is required.