BNSF 9317 (SD70ACe) pulls a loaded coal through the Black Forest trees in Larkspur, Colorado.

An updated MAC, BNSF 9730 (SD70MACe), and two helpers muscle a loaded coal through Acequia, Colorado.

BNSF 8798 (SD70ACe) leads a heavy loaded coal train through Spruce, Colorado.

Warbonnet BNSF 4705 (Dash9) emerges from Tunnel 1 on the Moffat Sub and will drop into Coal Creek Canyon.

BNSF 2548 (GP39-3) leads a short oil can train from Hudson and will drop off the cars at an oil refinery in Commerce City, Colorado.

BNSF 4705 (Dash9) provides a rare opportunity to catch a Warbonnet on lead going through the Moffat Tunnel district. Here it emerges from Tunnel 29 at Pinecliffe, Colorado.

Coors switcher 997 (SW1000) makes a solo run to pick up a cut of grain cars. This critter was built in 1970 for the Burlington Northern Railroad.

UP 2001 (SD70MAC in the special Olympic Torch paint scheme) reconnects the train after picking up some empty center beam cars in Fort Lupton, Colorado.

The day is almost over for the crew of UP 7819 (ES44AC) as it arrives with a cut of cars at LaSalle, Colorado.

The sun is kissing the tops of the cattails as the California Zephyr passes Barr Lake in Brighton, Colorado early in the morning.

UP 8687 (SD70ACe) heads into the yard to connect with a freight that it will take to Denver later.

UP 8687 (SD70ACe) brings a freight into the UP yard at LaSalle, Colorado.

UP 5600 (AC4400CW) holds on a siding in Brighton, Colorado for a green light to head to Denver.

UP 8762 (SD70ACe) leads a freight through Windsor, Colorado.

UP 7407 (ES44AC) leads a windmill blade train through Nixon, Colorado