I got to spend 5 weeks in great falls hunting in every direction 8 yrs. ago.
My friend lives in great falls and I stayed with him when I wasn't living out of the back of the suburban hunting.
I love Montana.
Looks to me like your driving through a lot a PD country on your route. I would be hard pressed to pass that up for coyotes. Don't get me wrong, I like to shoot coyotes but I don't get near the trigger time with them as I do Pd's