Kanas City Southern #4860 (ES44AC) muscles a loaded coal train towards Denver, Colorado.

BNSF 7834 (ES44DC) pushes through a strong snowstorm to deliver a container train to the intermodal facility in Denver, Colorado.

BNSF 6129 (ES44AC) breaks out of the trees and the shadows as it leads an empty coal train east on the Brush Sub.

BNSF 8425 (SD70ACe) leads an empty bucket train east on the Brush Sub, passing a frozen lake at West Tonville.

With light snow falling, a high-balling stack train running eastward out of Denver on the Brush Sub takes the green and meets BNSF 8455 (SD70ACe) holding on a siding with a load of coal. Once the... (more)

BNSF 8425 (SD70ACe) leads an empty coal past a frozen pond at Tonville, Colorado.

The morning Z Train led by BNSF 3944 (AC4400CW-CTE) passes by a frozen pond at Tonville, Colorado.

The California Zephyr is rushing to make up for lost time as AMTK 14 (P42DC) passes through Tonville, Colorado.

On a cold November morning, Amtrak’s westbound California Zephyr races out of the fog in Tonville, CO with the Phase IV and Phase III heritage units 184 and 822 leading the train on November 5th... (more)

The entire valley outside the east portal of the Moffat Tunnel glows yellow as the aspen are in prime transition. Within a week the leaves will fall off the trees, and it will look very much like ... (more)

In the mid-morning sunlight, BNSF SD70MAC #9766 leads a late and long westbound California Zephyr out of Tonville Siding and on towards Denver. The rear eight coach cars on the train are for the W... (more)

Empty headed for Power River Basin coal. A Roger Puta Photograph

Just after Sunrise, a couple of BNSF SD70ACe's head South with another loaded coal train over the West switch at Tonville.

A rebuilt ex-Santa Fe GP35 heads West towards Denver with the Hudson turn.

Traveling westbound past Tonville, Colorado, is a Burlington Northern coal train on July 7, 1985. Five locomotives power the Denver-bound train on the Brush Subdivision, with a mix of three GE C30... (more)