A trio of Union Pacific GE AC4400CWs are working as a mid-train DPU on an eastbound UP coal train negotiating Little Gore Canyon between Radium and Azure, Colorado, on August 4, 2014.
Fresh painted UP 6875 is the lead unit on a westbound auto train at Mira Loma.
An eastbound coal train passes through 63' Tunnel 40 and greets the morning light. A mid-train helper consist is just coming into view.
Holding on a spur, this AC44 and an SP unit are tied down with coal empties.