Oregon has several but I cannot remember the names exactly. "Once upon a Great Notion", "One flew over the Cuckoos Nest" There was a movie about a woman going down the Rouge River, The Goonies, The Ring series, Ursula LeGuinn lived in Portland, there are lots of people here, Astoria has several creative people.

THE BIG BURN by Timothy Egan would work well for WA, ID and MT.

Robert Frosts poetry. The best place to read this is the Robert Frost Interpretive Trail in Ripton. [fs.usda.gov]

Washington state. Twilight. Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The Great Gatsby? I disagree! It's got to be The Godfather.

Right now it is :

[en.wikipedia.org]

House of the Seven Gables, Scarlet Letter, Moby Dick..Jaws..anything by Whitman.

I like the choice for Nebraska, I remember reading it when I was much younger. It is very well written.