Roaqd is a majoy interstate and well maintaned. From Brigham City to Provo you will have 100 miles of traffic. Plan your trip to avoid the commutes. South of Provo is nice, one climb in Scipio, but not bad. Elevation will alwasy be less than 6500'. Beaver to Cedar City is high desert. Cedar to St George is red rock country. Narrow winding 4 lane going through the Virgin River gorge. Beautiful but stay alert to the road. Mesquite to Las Vegas is low desert.
Only caution on the entire route is to watch weather. Snow can slow you down anywhere north of Cedar City. Too early in the year to expect a problem. Being from MT you will not be troubled with anything UT will throw at you and the drive is very pleasing to the eye. Part of the road south of Nephi is not pleasing to the butt.
Steve & Sherri
2002 Winnebago Journey DL 39QD