The sun is not up just yet as BNSF C44-9W No. 1011 leads the Cheyenne, Wyoming to Denver, Colorado manifest by Milepost 34 near Boulder, Colorado as the train approaches 55th Street on a frigid morning on December 18, 2016.
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!)