BILL PHILLIPS photo. Empty rock train heading to Chico TX.

BNSF 8755 (SD70ACe) leads a colorful consist through Hudson, Colorado on the Brush Sub.

BNSF 6391 (ES44AC) runs through Plainview, Colorado on the Moffat Tunnel Sub.

UP 4927 (SD70M) leads the Rocky Mountaineer out of Tunnel #1 in Plainview, Colorado.

UP 3880 (SD70M) leads the Rocky Mountaineer through South Draw, Colorado as it heads to Denver on the Moffat Tunnel Sub.

UP 3880 (SD70M) leads the Rocky Mountaineer through Tunnel #14 in South Draw, Colorado.

With a fresh load of steaming iron ore CN (DM&IR) SD40-3 404 is leaving Mountain Iron, Minnesota, and heading south to Two Harbors Minnesota. October 1, 2006. Jack D Kuiphoff © photo

D&RGW SD40T-2 5375, engine terminal at Helper, Utah. April 20, 1997. Jack D Kuiphoff © photo

Monongahela Railway, MGA GP38's 2001 - 2003, Morgantown, West Virginia. March 21, 1986. Jack D Kuiphoff © photo

Nickel Plate Road 765 charges towards Angola with its passenger train on a sunny June afternoon.

A vibrant orange train engine is pulling a series of freight cars along the tracks, set against a landscape featuring large silos and lush green foliage. A clear blue sky provides a refreshing bac... (more)

Low angle perspective of Pune Daund DEMU as it proceeds towards Kudbhav for its next commercial halt.

UP 3880 (SD70M) leads the Rocky Mountaineer towards Tunnel #13 in South Draw, Colorado.

The Flatirons rock formations in Boulder, Colorado dominate the background as BNSF 6394 (ES44AC) runs through Plainview on the Moffat Tunnel Sub.

The California Zephyr meets the BNSF Provo train at Plainview, Colorado on the Moffat Tunnel Sub.