Twin Cities Zephyr
The Twin Cities Zephyr was a passenger train service of the Chicago, Burlington and Quincy Railroad (CB&Q). It was the second "Zephyr" service introduced by CB&Q following the record-setting Denver-Chicago "dawn to dusk dash" of the Pioneer Zephyr trainset. Since the service was inaugurated with an identical pair of diesel powered trains that ran in opposite directions, it was sometimes called the Twin Zephyrs. The service was discontinued in 1971 with the inauguration of Amtrak.
The first Twin Cities Zephyr entered service on December 18 1936. For the first run, the two trainsets built for the service departed Chicago simultaneously on parallel tracks with several pairs of twins as a publicity stunt.
- Zimmerman, Karl (2004). Burlington Zephyrs. Andover Junction Publications. ISBN 0-7603-1856-5.