Six sets of railroad tracks dominate the foreground of this photo. The set farthest from the camera is a siding next to a factory building and two railroad cars are on it next to a dock for the factory behind it. The cars are a Union Pacific gondola are a gondola and an unidentified box car. The factory is sheathed in corrugated iron. Steam is issuing from the vents in the main building. From center to right are five other factroy buildings, and the last one is a four-story house with a mansard roof. The name Jack Frost is handwritten on the back of the photo.