UP 7891 (ES44C4) heads into the Union Pacific's North Yard in Denver, Colorado.

A grain train leaves the Denver Yard, passing a pair of engines waiting on the ready track for a train assignment.

UP 5586 (AC4400CW-CTE) moves through the North Yard in Denver as heads to the fuel and sand servicing island.

BNSF 8753 (SD70ACe) and mate moves into the Denver yard to a waiting train.

BNSF 1958 (SD40-2) runs under a signal tower in the North Yard in Denver, Colorado.

BNSF 1448 (SD60M) is a former Burlington Northern motor built in 1991, and now sports a Heritage III paint scheme.

NS 4130 (AC44C6M) passes markers in the oldest cemetery in Denver, the Riverside Cemetery.

BNSF 1600 (SD40-2) works the yard in Denver, Colorado, sorting cars into the various ladders.

BNSF 6435 (ES44AC) waits for servicing at the facility in downtown Denver, Colorado.

BNSF 7040 (ES44C4) runs towards a crowded Denver Yard

BNSF 2745 (GP39E) moves away from the engine servicing facility in downtown Denver and heads to the yard where it will sort freight cars.

BNSF 8536 (SD70ACe) gets serviced at the facility in downtown Denver, Colorado.

BNSF 5935 (ES44AC) leads the Z Train through downtown Denver and will head east on the Brush Sub.

With the lost of the US Mail contracts, Santa Fe seeks to utilize a surplus of passenger F units for regular freight service. Santa Fe F3(A)#18 leads four passenger scheme "Warbonnets&quo... (more)

BNSF 2745 (GP39E) meets a heavy moving in the opposite direction in the Denver Yard.