NS 4130 (AC44C6M) runs past a signal in Keenesburg, Colorado as it heads west on the Brush Sub.

BNSF 5696 (AC4400CW) leads a loaded coal train through Keenesburg, Colorado as it heads west on the Brush Sub towards Denver.

BNSF 3859 (ET44C4) leads a former AT&SF Bluebonnet and a manifest freight west on the Brush Sub through Keenesburg, Colorado.

A pair of SD70ACe's run through farmland in Keenesburg, Colorado as they head west on the Brush Sub.

BNSF 5360 (Dash9) muscles a coal train west on the Brush Sub through Keenesburg, Colorado.

BNSF 3299 (ET44C4) runs past a pond in Keenesburg, Colorado as it runs east on the Brush Sub.

The California Zephyr leans into the elevated curve at sunrise as it runs 70 mph through Keenesburg, Colorado.

The sunrise is casting a golden glow over the California Zephyr as it runs west on the Brush Sub towards Keenesburg, Colorado.

BNSF 9294 (SD70ACe) muscles a loaded coal train west on the Brush Sub towards Keenesburg, Colorado.

The California Zephyr passengers and crew are treated to an amazing Colorado sunrise as the train passes through Keenesburg on the Brush Sub.

The California Zephyr runs through the signals at east Keenesburg as it heads to Denver at sunrise.

BNSF 6109 (ES44AC) leans into the elevated curve at Keenesburg, Colorado as it heads east on the Brush Sub.

The Colorado Rocky Mountains are covered in snow as BNSF 6109 (ES44AC) leads a freight through an elevated curve at Keenesburg, Colorado.

The California Zephyr runs through Keenesburg, Colorado as an orange-colored sunrise paints the horizon.

The California Zephyr runs through Keenesburg, Colorado as a spectacular sunrise paints the sky and glints off the stainless steel cars.