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

We drove 21 years back after visiting Great Basin and heading to Albuquerque. At that time we drove an F250 V10 towing a 32' Comfort TT and we had no problem. We filled up in Baker at a self serve Sinclair station before leaving. We were basically alone on the entire stretch and it was beautiful, to us. Vistas like you wouldn't believe. Of course, being boondockers, we kept our eye out for possibilities.

I found this link at Mile by Mile's website, which will give you an idea of the road.