Between 6 and 7

Amtrak 5 the California Zephyr is exiting the bore at Tunnel 6 and about to enter the darkness of Tunnel 7 high up on the Flatiron Range over Boulder County... (more)

The riders of the California Zephyr are presented with a magical winter wonderland as the previous night's heavy snow blankets the trees and flatirons of Eldorado Mountain.