Hi all.

Thanks again for all the advice. We've taken it to heart and discussed again and decided against the RV as there are simply too many factors against it, but most prominently the cold. We're going to rent a car in Seattle and will still do the road trip, but hopefully in a bit more comfort, especially w.r.t. sleeping arrangements.

Our plans are taking a bit more shape and we've already booked some accommodation (6-7 May in West Yellowstone, 8-9 May @ Mammoth).

Any suggestions on best routes for the trip? We'll have enough time both ways to take scenic routes and will need at least one overnight stop on the way there and two on the way back.