A Union Pacific coal load, led by Kansas City Southern GE ES44AC No. 4891, departs Azure, Colorado, during some of the last light of day on November 15, 2021. The eastbound train is following the... (more)

Some of the day’s last sunlight tickles high points of the landscape surrounding Azure, Colorado, on Union Pacific’s Moffat Tunnel Subdivision on November 15, 2021, as an eastbound UP coal loa... (more)

A crewman cleans the windows of a UP 2685 as KCS 4891 waits for a green to head west on the Moffat Tunnel Sub.