BNSF ACe 9009 leads a loaded coal train south on the Joint Line through Palmer Lake, Colorado.

BNSF Warbonnet 4717 (Dash9) paces a sports car running down Atwood Street in Longmont, Colorado.

BNSF 5489 (Dash9) and BNSF 9716 (SD70MACe) work the Longmont Switch running between Longmont and Fort Collins, Colorado on the Front Range Sub.

Thick fog and floating ice crystals at sunrise create a golden sun dog diamond as BNSF 9716 (SD70MACe) gets ready to take a cut of freight cars out of the yard in Longmont, Colorado.

Thick fog and freezing frost blanket the Front Range Sub as BNSF 6341 (ES44AC) leads a freight through Highlands, Colorado.

BNSF 5489 (Dash9) runs light on the Front Range Sub through Berthoud, Colorado.

Union Pacific's weekly Bond - Phippsburg local assaults the Crater Loops just outside of McCoy, CO running 3x3x1 with 152 cars of mostly frac sand for Craig.

A pair of Union Pacific AC4400CW's pull a freshly loaded coal train through the curves west of Hotchkiss, CO on UP's North Fork Subdivision. Landsend Peak and Mount Lamborn stand in the background... (more)

BNSF 4076 (Dash9) leads a freight west on the Brush Sub through Brighton, Colorado as it heads to Denver.

BNSF 8751 (SD70ACe) runs the elevator curve in Rocky, Colorado as it heads east on the Moffat Tunnel Sub towards Denver.

BNSF 2854 (GP39-2) still in Atchison Topeka & Santa Fe paint, works the huge yard in downtown Denver, Colorado.

UP 1837 (SD40N) runs west towards the North Yard in Denver, Colorado.

UP 1837 (SD40N) runs on an elevated track past a power plant in Denver, Colorado.

BNSF 4076 (Dash9) runs a long freight through Irondale, Colorado as it heads towards Denver on the Brush Sub.

Pumpkins on 5 in Fall Fall fills the Tolland Ranch valley just in time for some Pumpkin power on the point of the California Zephyr.