Union Pacific’s MRONY (Roper Yard-Salt Lake City to North Yard-Denver manifest) rolls through the long curve arcing into Crescent, Colorado, on March 10, 2013. The Continental Divide behind the train got a fresh coating of snow the day before during one of Colorado’s common spring storms. Trailing lead AC4400CW-CTE No. 5857 is Southern Pacific No. 343, one of the few SP AC4400CWs still roaming the UP system in its original number.