The one and only Union Pacific ALCO Built Northern Class 4-8-4 #844 is in the lead of the annual yearly Cheyenne Frontier Days Train, that runs between Denver, Colorado and Cheyenne, Wyoming. Assisting the 844 is UP 6936, the only operational EMD DDA40X, followed by 23 passenger cars. The train is seen making good time through the city of Greeley, on its way to Cheyenne.
