Yellowstone to Couer d'Alene ID: Park roads: Canyon to Norris, Mammoth, North Entrance
US 89 North, I 90 West
I 90 is under construction on the multiplex with I 15 in Butte MT and from Missoula MT west.
Every pass in MT and ID have Chain Up and Chain Removal areas for installing tire chains in winter.
New state visited: Montana, for a new total of 44.
Counties: Montana: 10, Idaho: 2, for a new total of 973.