At East Price, the conductor for Union Pacific's Salt Lake City, UT to Denver, CO manifest boards his train moments after offering a 'good roll by' to a coal load from the North Fork Sub in Colorado. On the point of this MRONY-21 is not one but two of UP's big AC6000 GE units (UP 7579 & 7578), built in 2000. A former Southern Pacific AC4400 brings up the rear of the quickly receding westbound coal load.