First road trip to these places (we live in L.A.) and will be towing a hybrid travel trailer (20-footer, or so.) We have no particular time limits... would like at least 2-3 days at each place. Will want to have campgrounds with hookups as much as possible, and try to avoid roads that might be closed due to snow (I know that's not terribly predictable!), but enjoy the scenery and fun little towns along the way.
All suggestions welcomed!