Union Pacific 4-8-4 Northern No. 844 returns to the rails after a three-year absence. Seen here, on a gorgeous July morning, UP 844 and UP SD70ACe No. 1989 take charge in the Cheyenne Frontier Days Special between Denver, Colorado, and Cheyenne, Wyoming along UP's Greeley Subdivision on July 23, 2016. The train can be seen rounding the big sweeping curve north of Platteville.
