General Motors toured its all-dome concept train, the Train of Tomorrow, across the country beginning in 1947. It was operated on many railroads during it's cross country tour. After the tour ended, Union Pacific purchased the four cars and assigned the Astra-Dome train, powered by an Electro-Motive 2,000-horsepower diesel locomotive, to pool service on the "City of Seattle", Seattle-Portland run. Passengers found a new way to enjoy the scenery when they rode in the Sky View diner, Star Dust chair car, Dream Cloud sleeper and Moon Glow lounge-observation car. The cars operated until the early 1960s.
Attribution: Sunset 3rd Rail
The Train of Tomorrow arrived in the winter during wet, dirty track conditions. Since outside running wasn’t an option, a small section of track was cleaned to capture some still images which were edited to create this video.