UP 8726 (SD70AH) runs through the trees on the Greeley Sub as it heads to Brighton, Colorado.

UP 8726 (SD70ACe) leads a power-heavy train north on the Greeley Sub through Brighton, Colorado.

BNSF 1729 (SD40-2) is sorting a cut of cars in the Denver Yard while a RTD communter rail train passes by in the background.

BNSF 2585 (GP39-3) leads an oil can train past Barr Lake in Brighton, Colorado as it heads to Commerce City on the Brush Sub.

The setting sun casts a shadow on the old Santa Fe Railroad depot in Gorieta, New Mexico, which was built as a wood frame and stucco building in 1927. It no longer serves rail traffic but has bee... (more)

BNSF 1789 (SD40-2) waits for servicing at the BNSF engine facility in Denver, Colorado.

BNSF 5898 (ES44AC) leads a heavy coal train through Spruce, Colorado and will soon be in Palmer Lake.

BNSF 5898 (ES44AC) leads a loaded coal train through Greenland, Colorado on the Joint Line

BNSF 6041 (ES44AC) leads a coal train through Wiggins, Colorado on the Brush Sub.

Ground fog and a golden sunrise create a glow around the California Zephyr as Amtrak engine 1#46 (P42DC) leads the train west on the Brush Sub.

BNSF 5898 (ES44AC) winds through the curves leading to Palmer Lake on the Joint Line.

BNSF 5859 (ES44AC) leaves the Denver Yard as other power sit idle on the ready tracks.

BNSF 1789 (SD40-2) is framed by the RTD Commuter Rail Line as it pulls a cut of cars out of the Denver Yard for sorting.

RTD light rail train #284 pulls into the Invesco Station. The Invesco Field stadium in the background is where the Denver Broncos play their home games

Ground fog and a golden sunrise creates a sepia-colored morning as the California Zephyr runs through Roggen on the Brush Sub.