Looking into it I found this in their tribal code:
Ch. 12. Weapons offenses. Part 1. Preliminary provisions (Section 4-12-101. Definitions. Section 4-12-102 Confiscation of unlawful weapons by Tribal Police). Part 2. Enumeration of offenses (Section 4-12-201. Carrying a concealed weapon. Section 4-12-202. Possession or manufacture of short-barreled rifle or shotgun. Section 4-12-203. Unlawful discharge or display of a firearm. Section 4-12-204. Carrying a firearm while unlawfully using or being under the influence of a controlled, prohibited, or intoxicating substance. Section 4-12-205. Possession of firearm or other dangerous weapon. Section 4-12-206. Destructive devices prohibited. Section 4-12-207. Possession of altered firearm. Section 4-12-208. Use of firearms by children under 14 years of age. Section 4-12-209. Aiming a firearm at a person).
The reason why I ask is because I am going to explore more around the Public Access Land the west, south west of that Tribal Reservation. And from reading their law, it is illegal?
I plan on hooking up to Eagle Canyon Rd and head south east.