In two weeks the Admiral and I are driving from Eugene, Oregon to Iowa to pick up our new Catalina 250 Wing Keel. The boat and trailer are within the limits of our GMC Yukon and we have purchased an equalizer hitch and will take it slow. It looks like there are three major Interstates (94 northernmost, 90, and 80 southernmost) that cover a lot of the trip. 94 and 90 link up in Idaho, go north to Spokane, and then come south. 80 links with 84 in Utah and heads north. Looking at the map it seems to me that the 80/84 combination will have the lesser mountain terrain, wind, and the better trailering. What do you think? Has anyone done both of these routes?