Watch for the immigrant trails. There are often placards on the roads where you cross them. They are on some roadmaps also. IIRC the trails split in west central WY and go to Oregon and Salt Lake City, etc. Those were some tough people to push all of thier worldly belongings in handcarts across that country. There are graves all along the trails. Almost any physical problem was deadly under those conditions. When you look across the horizon and see recognizable landmarks, those are the same landmarks the immigrants used to navigate.

Warning, if you venture offroad, sagebrush will scratch paint.