Please forgive me, as I’m British, but I’ve worked in Arches National Park on more than one occasion. It has been a national park for many years and remained so until almost two years ago when I was last there. And staffed by NPS staff. If it’s status has changed, which I doubt, then (again) please forgive me.Actually, I believe Arches is not a national park, it is a park on a Native American reservation. The national park rules don’t apply but that is not to say there may be other local restrictions that do apply. Now a days it is best to leave enforcement to law agencies, never know what kind of crazies you’ll come across.