The car to the left is DRG&W Diner "Silver Gorge" the other is CB&Q Slumber Coach "Silver Crag". Both are California Zephyr cars. For details of this wreck see: http://railfan44.rrpicturearchives... (more)
Locomotives: RFP 137(GP35), RFP 127(GP40), RFP 121(GP40), and RFP 1007(E8A). All RF&P odd numbered road diesels and faced south. Obviously this was a NB train.