Assuming Reno, NV. Go South US 395 to Carson City. Nevada State Museum, Railroad Museum, US 50 through Fallon to Ely. Lots of desert, old mining town, etc. Stay overnight in Ely, restaurant in the old jail had very good food. Drive North on US 93 to Wells, NV, East on I-80. At Wendover is the Bonneville Salt Flats. 100 miles farther is Salt Lake City. Mormon Temple Tour is interesting. Out of SLC is a long climb to Evanston. Nice town with some history. A little farther is Fort Bridger State Park. Nice little RV park a block away, it's about 7 miles off the interstate. Good for 2 or 3 hours. Laramie has already been mentioned, take a guided tour of Cheyenne, 1/2 day is a lot of fun. Stop in Sydney Nebraska. Home of Cabalas, they have an RV park at the store. And the old Ft Sidney down by the railroad tracks. You might want too drive US 30, it parallels the Interstate and there are some neat little burgs along the way.
Jim and Valerie, 2005 Winnie Adventurer 37B, 2014 Subaru Forester Toad, hitches, brakes, anti-sways, autopilot, gourmet food on a Social Security budget.
"Wave as you go by."