Intermountain Railroads: Standard and Narrow Gauge

This talks about the start of a narrow gauge beginning in Utah, going into Idaho and then into Montana. I didn't realize there was one up that way. It eventually was converted into standard gauge and became what was known as the Oregon Short Line that became part of Union Pacific. It was an OK read but it could have done without the last few chapters going to NP, UP, Great Northern and the Milwaukee Road. I think it was just to make a bigger book!