Passing through Silver Plume on 10-Jun-2007, I found this little diesel unloaded on the track in front of the depot. It's a 3-foot gauge GE B-50/50-1GE733, serial number 29241. It was built in January 1948, and is rated for 150hp. It's not powerful enough to do much out on the line, so this must be intended as a shop switcher.