Because I am the foolish sort, I'm riding my Kawasaki KE100 from Chicago to Bow, WA where my wife will be working on a tree farm. It's not the fastest of bikes, but it's fun. I have an affinity to ride roads where "Old" has been added to its designation.
Without knowing much about the area, here's The Route through Washington
Open to suggestions.
The main trip planning thread is here KE100 - Slow ride Chicago to Pacific Northwest