UP 8062 (ES44AC) leads a freight south on the Greeley Sub through Brighton, Colorado.

The Union Pacific's North Yard in Denver is filling up with light and heavy powered motors, bringing back memories of the days when there would consistently be 40 to 50 engines waiting for service... (more)

UP 1605, a long nose SD40-2, sits in the yard in LaSalle, Colorado for orders.

BNSF 6286 (ES44AC) leads 8 other motors on the Provo train as it heads to Denver, Colorado on the Moffat Tunnel Sub.

RTD of Denver commuter train #4062 (Hyundai Eagle P3) runs between Denver and Arvada, Colorado in a colorful wrap.

Storm light catches the California Zephyr 6 train crossing the South Platte River as it arrives in Denver, Colorado.

UP 8106 (ES44AC) leads the Denver to Grand Junction train out of the North Yard in Denver, Colorado.

UP 1640 (SD40N) waits in the Union Pacific's North Yard in Denver, Colorado for orders to sort cars.

KCS 4738 (ES44AC) runs through the trees at Spruce, Colorado as it heads south on the Joint Line.

BNSF 6286 (ES44AC) joins a variety of BNSF motors in the yard of the engine servicing facility in Denver, Colorado.

BNSF 5097 (Dash9) leads as it heads south on the Joint Line through Spruce, Colorado.

Amtrak's Winter Park Express Ski Train runs through the North Yard in Denver, Colorado at sunrise as it heads towards the Rocky Mountains on the Moffat Tunnel Sub.

Amtrak's Winter Park Express Ski Train runs through the snow towards the platform at the ski resort to pick up passengers for the ride back to Denver, Colorado.

A pair of old school Cascade Green Burlington Northern motors move a string of cars over the South Platte River in Denver, Colorado.

BNSF 2708 (GP39-2) lashes up to a string of heavy motors in the yard of the engine servicing facility.