It's just after sunset as AMTK P42DC No. 170 leads a 42 minute late eastbound California Zephyr as they round a curve before entering Tunnel No. 29 at Pinecliffe, Colorado on January 11, 2016. The... (more)

A thin layer of clouds mixed in with haze partially block out the sun as Amtrak no. 6, The California Zephyr, coasts down the grade at track speed near Arvada, Colo., with a brand new Siemens ACS-... (more)

Lookout Mountain can be seen in the background as Amtrak no 6, The California Zephyr, eases down the grade from Big Ten Curve towards Rocky. The third unit is a brand new Siemens ACS-64 electric l... (more)