My apologies...the Arrowhead shots I previously mentioned were actually powered by the PERy 1651, what appears to be a 40 ton steeple cab diesel-electric locotmotive. It appears as though my mind merged two seperate sets of photographs purchased at the same time form Craig Rasmussen.

In the first set, I have a series of two photographs showing the car loading spot at Arrowhead springs with one end of a car and trolley wire and further downhill crossing Hwy 30 taken by Ivan Baker in 1938. These show trolley wire, but no action. The balance of eight pictures depict the switch move under diesel power from A'head to S'Bdno with trolley wire at the lower elevations, final scene at a yard in S'Bdno.