Best and worst routes across the Mountains ?
The RV is a 23 foot 1974 GMC geared for cruising on flat interstates. PLanning an epic summer trip to the west coast, Grand Canyon, Bay Area, maybe portland and then Yellowstone. That give...
Forum Discussion
Consider the road hierarchy. Interstates have the flattest grades. Primary state highways the next flattest, etc. Cross the mountains on the biggest road you can find.
