I don't know how active it is any longer, but there is a transfer table at the old shop buildings in Livingston, Montana. And a turntable too. Buildings down both sides of the transfer table. This is the old Northern Pacific facility now owned by the MRL. It was pretty quiet when I was there, but then I have of a way of not finding active trains when I go looking for them. Everyone else that doesn't care, like my sister or girlfriend, sees them all the time.
Btw Joe, if you like sd70ace's (and I know you do), they look good in MRL black and blue heading up the hill to Bozeman pass.
Jim