Utah state routes 130 and 21 from Zion to Great Basin NP

Not sure about 130 as have only driven parts. But, 31 is a good highway. A few summits but nothing bad. Little traffic. Watch for cows along the road. Check out Frisco ghost town which has an interesting cemetary. There is a place to park along the highway with a dilapidated shelter. We spent the night at the ghost town. Very quiet. You won't be able to drive in to the town with your 5 er but can walk in. The cemetery is found by taking the road to the left. The town is to the right. There is a gated road warning about no trespassing as there is some sort of project happening. .