A spring snowstorm blankets the Denver, Colorado, area as Union Pacific locomotives rest into the night of April 15, 2013, at UP’s former Rio Grande North Yard locomotive facility.

A new crew has boarded and received clearance to proceed south in dense, sub freezing fog conditions that have begun icing on locomotives and cars.

Takin’ down the blue flag
After finishing up his work, an employee of Union Pacific’s fuel track at North Yard in Denver, Colorado, removes the blue flag from AC440CW-CTE No. 5652 a... (more)

A Union Pacific coal empty rolls east through the Jordan Narrows, bound for the West Elk mine in southwestern Colorado.