Longest for me was pulling our 30' TT from Wells, Nevada to Terrace, BC on our way home from Vegas. I was trying to get ahead of a huge storm which I knew was coming, but didn't make it past Wells. Had to hole up in a truck stop in Twin Falls, Idaho for a couple of days to wait out the worst of the storm, then north on I15 to Coutts, Alberta, then to Edmonton, Alberta, and to home in Terrace, BC. About 1500 miles I think.
I have to say that Western Canada could learn a thing or two about snow and ice control from you 'Mericans. Nevada, Idaho, and Montana crews were right on it. Got to the Alberta border and it was like night and day. It was like 2 tracks of ice for the last 1,000 miles or so. Took 3½ days from Coutts to Terrace.
Not many idiots and only a couple of white knuckle moments in the mountains, so not so bad.
Just had ta get home, ya know!!