A pair of Amtrak’s ill-fated SDP40Fs at Denver Union…

A pair of Amtrak’s ill-fated SDP40Fs at Denver Union Station with the San Francisco Zephyr. AMTK 580, just a year old in this shot, would be withdrawn from service just two years later, with many of its components being used to construct F40PHR #255 (built 11/77). Date of this photo approximate.

8/1/1975