Nice a local from the area, how far away do you live from this line? and What part of Idaho is it in. I know of a story of another Galloping Goose that was ran on a branch line out of Soda Springs, Idaho. It is sitting in that towns park now, along with an 0-4-0 locomotive the town calls a Dinky cause it was so small for a standard gauge engine.
Still a Student,
Dave