What is the westernmost rust belt city? (great, rooms)

[iPwn]

I feel like Great Falls, Montana had a rust belt like vibe, though of course it's far too distant from the actual rustbelt to count. what would you say? maybe somewhere in minnesota?

[goat314]

St. Louis or Davenport, IA.

http://upload.wikimedia.org/wikipedia/en/9/90/Rust_belttFULL.jpg (broken link)

[atlantagreg30127]

This is already being discussed in the city-vs-city room - please add to that discussion instead of having it go on in two rooms. Thank you.