Presently being aired on HoBO (HiDef on the main channel), is this "coming of age" flick
. At first, it looked like another "soap" that was going to get some big screen time, but then Jane Fonda is simply too accomplished an actress (this Viet Nam Vet has long since tuned out her politics and has focused on her acting skills) to touch any production - even one co-starring off-screen "bad girl" Lindsay Lohan - that does not have the potential of "quality'.
I found such to be the case - and I did not need an IMDB reviewer to tell me so.
Nevertheless, a fictional Idaho & Northwestern GP-35 made a "cameo'. Production credit is given to the Fillmore and Western RR.
IMDB reports the filming location of Monrovia CA, which of course is convenient for 1) the producers to hold down costs, and 2) some on location "hill country' backdrops that could pass for Northern Idaho (I've been there during my MILW years).