The sun has nearly set on the first day of October along Arizona Divide as three of General Eclectic's locomotives throttle out of the Darling sag with a heavy Q train in tow.
Slowly crawling up the 1.5 percent grade of the Arizona, a heavy Q CHISTO6 struggles to reach Darling as hot UPS trains are rapidly approaching behind it.
As the sun begins to dip behind the Arizona Divide, an eastbound stack train races down through Darling with the San Francisco peaks in the background.