Hi, Mark!
Ditto what Trail Dog said! Around Elk Mountain can be some really weird and rough stuff. However, the road across Wyoming is not particularly mountainous- just high elevations 7,000 to 8,000 feet. There are some really beautiful mountains between Evanston, Wyoming and Ogden, Utah, but the road isn’t bad. 84 north into Idaho can be a real bear if it is snowing because the wind is always howling down through that valley.
From Burley, Idaho, on west to north of Ontario, Oregon is a pretty good road. We never have much snow on the road. From Baker City through the Blues to Pendleton is another story. Watch the weathercasts real carefully! Then the Columbia River Gorge can have some bad ice that time of year (I don’t have much experience up there).
I got into one of the biggest traffic jams I’ve ever been in (of course, I’ve always lived in Colorado, Nebraska, Wyoming, and Idaho so that’s not saying much) at Rawlins. This was late April four years ago, I was east bound and had to put in at Rock Springs because of a blizzard in the Cheyenne/Laramie area. Wyoming Hi-way patrol closed the road at RS because all the hotels were full down the road. When I finally got out of town at 9:00 a. m. the next day all was well to Rawlins (bear in mind the skies had been clear and the temperatures really mild both days where we were). I was in the fast lane feeling good when at about milepost 210 I had to make a quick stop and join the worlds longest parking lot. Finally got back on the road and stayed in the fast lane with the eighteen-wheelers and made the trip to Cheyenne faster than I’ve ever done. Just east of Laramie on the west bound I saw what our parking lot must have been like earlier. I measured 21 miles of total inactive vehicles in both lanes - truck drivers playing cards on the fenders, etc. I never did find out why it happened because the skies were blue, temperature warm, no snow on the road, no accidents.
If I was towing and unsure of myself I’d be sure to have an unhurried schedule, enough money for hotels, and if I hit bad conditions I’d pull off and wait it out.
One more thing, be sure to visit beautiful downtown Wamsutter, Wyoming. Just ask Ol' Trail Dog. :-laf
By the way, THANKS FOR BEING WILLING TO GO WHERE YOU ARE AND DO WHAT YOU DO! YOU GUYS AND GALS ARE AWESOME!! Oo.
Gene