The Denver Zephyr in 1938

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.[1] It operated from 1936 to 1973. 

On October 23, 1936, one of the new ten-car trainsets made a special run nonstop Chicago to Denver in an effort to break the 1934 record of the Pioneer Zephyr between the two cities. The train went from Chicago to Denver in 12 hours, 12 minutes, and 27 seconds, at start-to-stop average of 83.89 miles per hour (135.01 km/h) and reached 116 miles per hour (187 km/h) between Akron and Brush in Colorado.


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