Okay...let me phrase this properly. My family is from Montana and I mainly collect what ran in Montana. Thus, over the years I have acquired Northern Pacific, Milwaukee Road, Great Northern, a little Chicago, Burlington & Quincy, Burlington Northern and Montana Rail Link.
When I went to the Northern Pacific Railroad Historical Association Convention I heard a series of fascinating presentations, panels, and discussions. And there was one thing that did stun me. I never knew that the Northern Pacific and Union Pacific were fierce competitors into Butte, Montana.
So for those of you into the UP I have a couple of questions.
1. What do you know about UP operations in Butte, Montana say, 1920-1970?
2. Can anyone tell me what diesel and steam engines the UP operated into Montana?
I'm going to chew on this as I am a loyal Northern Pacific foamer! 
But in the years to come I may have to pick up a couple UP steam, and diesel. I do know about the Butte Special which was hauled by E8's.
Can any of you help?
