The Denver Zephyr was a streamlined passenger train operated by the Chicago, Burlington and Quincy Railroad between Chicago, Illinois, and Denver, Colorado. In peak years it ran to Colorado Springs. I
The Denver Zephyr in 1936
Early promotional postcard for the train. It is billed as the "Advance Zephyr" and when this card was printed, the train had yet to add any sleeping cars, being described as "coach only--for the present".
The San Francisco Zephyr was an Amtrak passenger train that ran between Chicago and Oakland from June 1972 to July 1983, when it was renamed to the California Zephyr.
Denver Zephyr
…Northern Railroad merger in 1970. BN conveyed the train to Amtrak in 1971; Amtrak merged it with the Denver–Oakland City of San Francisco to form the San Francisco Zephyr and dropped the "Denver" name in 1973. The first Zephyr service to Denver began May 31, 1936, with the trainsets of the Pioneer Zephyr and the Mark…
An EMD FP7 and two EMD SDP40Fs pull the eastward San Francisco Zephyr through the Sierra in 1975