My 2006 Wee-Strom is named Colorado. On its behalf, I thank you for compliments to the Centennial State.
Currently, a friend is riding Colorado for me, generally staying near his home in Markham ON.
There are lots of lovely roads, often where you do not expect them. I chanced upon US 93 going up the spine of Idaho, and it was a fine ride, along the Salmon river, a turbulent stream that is too busy and swift for commercial use, but it's scenic as anything.
Other roads are bleak and discouraging. Never mind visiting Transylvania Louisiana; even the school is closed.
US-2 northward from Spokane takes you to Grand Coulee Dam and the view is splendid.
Going south from Upper Michigan to Lower, stay in the right lane for easier riding on finer gridwork.
ME-6 and ME-9 are great ways to cross Maine. Take 6 for the scenic route to Fredericton NB.
Never mind stopping to toss flat stones into Lake Champlain when US-2 takes you to the middle of the lake.
I went there, and I threw them all in.
Then I coloured in the maps below ...