BNSF 1600 (SD40-2) sorts a cut of cars into the ladders in the yard in downtown Denver, Colorado.

Norfolk Southern #4130 (AC44C6M) leads two BNSF motors and an oil can train through Brighton, Colorado.

Norfolk Southern #4130 (AC44C6M) leads a long oil can train through Hudson, Colorado as it heads west on the Brush Sub.

UP 5830 (ES44AC) leads a freight down Sherman Hill in Wyoming.

UP 5906 (AC4400CW-CTE) leads a long and heavy powered freight east of Cheyenne, Wyoming and heads to Archer Hill.

NS 4130 (AC44C6M) leads an oil can train past Barr Lake as it heads to Denver, Colorado on the Brush Sub

An 'old school' Geep in Burlington Northern Cascade Green paint heads to the yard in Denver, Colorado.

BNSF 1600 (SD40-2) strains to pull a sting of cars out of the yard in Denver, Colorado.

BNSF 9325 (SD70ACe) joins a string of other heavies in the yard at the engine servicing facility in downtown Denver, Colorado.

BNSF 5246 (Dash9) takes a train out of the yard in Golden, Colorado and will head to Denver.

BNSF 2708 (GP39-2) sits in the yard in Golden, Colorado, ready to take a train to Denver.

The California Zephyr backs into Union Station located in downtown Denver, Colorado.

Norfolk Southern #4130 (AC44C6M) leads a freight west on the Brush Sub past the Riverside Cemetary in Denver, Colorado.

The California Zephyr tries to outrun thunderstorms as it heads east on the Moffat Tunnel Sub through Crescent, Colorado.

BNSF 5689 (AC4400CW) leads a 9-motor oil can train through Tolland, Colorado as it heads west on the Moffat Tunnel Sub.