BNSF 2530 (GP39-3) moves a cut of wood cars to clients in Lafayette, Colorado.

BNSF 2530 (GP39-3) waits for orders to head to the yard in Longmont, Colorado for an assignment.

BNSF 1733 (SD40-2) pulls a cut of cars over the South Platte River in Denver, Colorado.

BNSF 2549 (ex AT&SF GP39-3) waits for orders to move a cut of oil cans at the refineries in Commerce City.

UP 8654 (SD70ACe) leads an oil can train through Rocky, Colorado.

UP 7793 (ES44AC) sits at the signals in Denver, Colorado.

UP 7833 (ES44AC) heads towards the yard in Cheyenne, Wyoming.

UP 2533 (ES44AC) leads a freight through the open range lands south of Laramie, Wyoming.

UP 5593 (AC4400CW) leads a freight out of the Hermosa Tunnels and heads towards Laramie, Wyoming.

UP 5593 (AC4400CW) leads a freight from the Hermosa Tunnels and heads towards Tie Siding.

UP 801 (GP38-2) works a yard in Commerce City, Colorado as they shuffle gondolas at a metal recycling facility.

UP 8147 (ES44AC) runs through Coal Creek Canyon as snow and fog moves into the valley.

UP 801 (GP38-2) pulls a cut of cars out of the yard in Commerce City, Colorado.

A weary looking Amtrak engine #169 leads the California Zephyr through Crescent, Colorado after a heavy snowstorm the night before.

Amtrak's Phase VII engine #174 (P42DC) leads the Winter Park Express out of Tunnel #1 and heads towards Plainview, Colorado.