UP 6845 & 5572 bring up the rear of an eastbound coal train.

UP 6845 & NS 9515 lead an eastbound intermodal train.

BNSF 9374 leads its train eastbound through Tunnel 29 in Pinecliffe, CO.

UP 6845 leads 7164, 5730, 7029, 6891, 5652 and a train of empty coal hoppers up the twisting grade near Tunnel 1. State Highway 72 is seen on the left heading west into Coal Creek Canyon.

A train of covered hoppers hustles west after cresting the grade at Erie.

First train of the day rolls through Valley to meet an empty coal train at Wann, the start to the busiest day on the UP I saw during a trip to Vegas. (Business trip for Maryann, trains for me).

Signs of Winter early on Union Pacific's line to the PRB.