Once switching has been completed, Union Pacific's LDI04 "Local 4" with a pair of SD40N's begin to shove back to their train on the siding at Greeley, Colorado after picking up some gondolas and a box car at a couple of industries on January 25, 2017.
A continuously growing album of photos that IMHO reveal the awesome and seldom-seen beauty of the railroad world from the dimming of day to dawn's early light! From dusk to dawn, trains roll on! (I'm still finding gems of sunset-to-sunrise surprises!)