The Denver Zephyrs
Entered service November 8, 1936
Service between Denver and Chicago

The first long-distance, overnight streamliner for the Burlington was its Denver Zephyr, which made the "Overnight, Every Night" trip between Chicago & Denver. While the earlier Zephyrs had been fully articulated, the Denver Zephyrs were semi-articulated, to allow for ease of inclusion of additional cars to increase capacity. There were two, complete, 10-car train sets for this run, pulled by locomotive pairs, Silver King/Silver Queen or Silver Knight/Silver Princess. In keeping with the tradition started with the Mark Twain Zephyr, the cars were all named, this time with the Silver prefix.