Aurora Borealis was slightly visible along BNSF's Needles Sub at Danby. All red across the board at the EBCS East Danby as an eastbound Z-train approaches for a crew change. Once it clears the west end, a red over green signal would appear for the another Z-train would over take the stopped Z-train.
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!)