Well after sunset, a westbound BNSF manifest from Denver, Colorado to Provo, Utah knocks down the signals protecting the east end of East Portal siding along UP's Moffat Route on December 23, 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!)