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 train did arrive into Denver 5 minutes early.
An ongoing/growing album of photos that IMHO reveal the awesome, but seldom seen beauty of railroads because most of us don't go out after sundown or before sunrise. From dusk to dawn, lights are on! (And I continue to find new "Lights In The Night"!)