A westbound BNSF coal train passes through Barr, Colorado, at dawn on December 2, 2010. As the DPUs pass by, thin clouds are turning pastel shades of yellow, orange and red by a rising winter sun.
It's a calm and peaceful evening on Berthoud Hill as a DPU helps assist the daily Laurel, MT to Denver, CO manifest up the hill as the train proceeds south towards Longmont and eventually Denver.