Moving to the SLC area from North Dakota this summer. We are bringing our camper and looking to take 4 or 5 days to make the trip. ND-MT-ID south is the most direct route. We are considering spending a few days in Yellowstone NP but also considering ND-SD-WY to SLC. Any recommendations? Not looking to off-road since we will have the wife’s suburban and a 25 ft travel trailer.