With a former C&NW AC4400CW in the lead, a Union Pacific coal train drops down the 2% grade out of Tunnel 15 and is about to enter Tunnel 14, near Crescent, Colorado, on March 30, 2002. The rear of the train is still in Tunnel 17, while the mid-train DPUs are on a fill approaching Tunnel 16. The large cut is the former Tunnel 17, now daylighted, and this horseshoe is in a location called South Draw where South Boulder Creek flows north toward Boulder Creek.
