Via Patterico. The Saturn plant is in Spring Hill, TN, not far from where I live in Knoxville/Maryville. This is sad, but not unpredictable. Saturn has been in business almost 20 years and has yet to turn a profit.
For a while GM was spawning new brands – Saturn and Hummer – and adding dealerships for those brands when they should have been shuttering obsolete brands like Oldsmobile and Pontiac and closing excess dealerships. You can only thumb your nose to reality for so long.