Alberta to Yuma

Hi there, you are just north of us, we are near Camrose and will leave Jan 3 pulling a 30 ft 5th wheel with a Tundra. Will be our third year going down to Calif. and Arizona. We stick to I15 all the way. It is all 4 lane and well maintained. First year had snow on all passes but no problem for us who are used to driving in snow. Last year was dry pavement from Great Falls on except for some light snow on Monida pass. Try to go through Salt Lake City in non rush hour times. Its multi lane all the way through with no stops but can be stressfull when traffic heavy at rush hour as it takes a long time to get through. Rest stops all along the way too which is nice as rv is winterized.