Ground fog and a colorful sunrise greet the passengers and crew of the California Zephyr 5 train as it runs towards Keenesburg, Colorado.

BNSF 5215 (Dash 9) leads a freight through Keenesburg, Colorado at sunrise.

An orange sunrise greets the passengers and crew of the California Zephyr as it runs past a silo in Keenesburg, Colorado.

Two BNSF trains meet at Keenesburg, Colorado. BNSF ACe 8793 waits in the siding at an eastbound freight heads towards Roggen on the Brush Sub.

BNSF 9027 (SD70ACe) shoves an empty coal train towards Keenesburg, Colorado on the Brush Sub.

CP 8059, and a UP SD70M, lead Sweet Grass, MT to Fresno, CA grain train across the farmlands of eastern Colorado along BNSF's Brush Sub at Keenesburg.

A GE AC4400CW and an EMD SD70MAC pull a 124 car loads of coal for Southwestern Public Service (Amarillo,TX) over the hill of Keenesburg along BNSF's Brush Sub.

UP 5518 (C45ACCTE) lends a helping hand to the California Zephyr as it runs through the Keenesburg Cut on its way to Chicago. The UP motor was needed because one of the Amtrak P42s had to be set ... (more)

BNSF 5419 (Dash9) leads a freight into the Keenesburg Cut as it heads east on the Brush Sub.

BNSF 9216 (SD70ACe) leads an empty coal train east on the Brush Sub towards Keenesburg, Colorado.

BNSF 4768 (Dash9) kicks up the snow as it leads the Z Train into the Keenesburg Cut as it heads east on the Brush Sub.

BNSF 4768 (Dash9) leads the fast Z Train as it blasts through the snow while running east on the Brush Sub at Keenesburg, Colorado.

BNSF 9007 (SD70ACe) runs through Keenesburg, Colorado as it heads east on the Brush Sub.

BNSF 5419 (Dash9) leads a power-heavy freight through the Keenesburg Cut in Colorado.

BNSF 9007 (SD70ACe) muscles a loaded coal train through The Cut located in Keenesburg, Colorado.