There's not too many places in Utah we haven't visited, but we still want to see more. Last year we drove into northern Utah from Idaho on I-15, and it was spectacular. That drive is much greener looking than most of Utah. My wife thought it was the prettiest drive she's ever seen, and we've seen a lot of great drives out west.
We’ve tore up a lot of Utah too, but like you want to see more. We did something similar one year and drove into Idaho. We veered off from I-15 and took 89 near Bear Lake and then went to Soda Springs in Idaho. So much to see in Utah and the U.S. and so little time and money to do it. Even with the mountain lion attack in Big Bend, would like to see that too from your recommendation. A long way from us here in Denver though. Maybe someday though.