Saw this thread and had to add my experience. We just got back on Monday for being on the road a month. Southern California to Utah to Idaho to Montana to Canada back into Idaho to Washington to Oregon and finally back to California.
Best Roads Montana and Oregon
Worst Roads - Washington State
Most Scenic stretch of road - Montana
Least Scenic stretch of road - Eastern Washington State
Crossing into Canada in your rv - easy
Crossing back into the US in your rv - question after question
Best Campground we stayed at - Waterton in Alberta Canada (just amazing views)
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