The signals on the Middle Division at PT174 near Horningford, PA. Five trains passed in a span of 40 minutes. Here an eastbound approaches silhouetting the mast signals and a westbound enters the block and activates the signals in this 20 second exposure.
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An ongoing/growing album of photos that IMHO reveal the awesome, but seldom seen beauty of railroads because most of us don't go out after sundown or before sunrise. From dusk to dawn, lights are on! (And I continue to find new "Lights In The Night"!)