An eastbound Union Pacific freight meets a westbound UP work train at Tolland, Colorado, during the peak of autumn colors in the high country on the Moffat tunnel Subdivision on October 2, 2008.

A westbound Union Pacific freight departs the yard at Green River, Wyoming, beginning its climb over Peru Hill on the Railroad’s Evanston Subdivision on the morning of September 27, 2020.

Union Pacific SD70AH's 8923 and 9086 rumble across the American Falls bridge.

As viewed from the Jefferson Ave overpass, downtown St. Louis and city's famed Arch immediately welcome ZDUNP 09 and its nearly 10,000 feet consist of both domestic and international container tra... (more)

UP 1111 with UP 6290 leads a long and heavy WB stack train downgrade through the tight curves at Cavot

At one time, Union Pacific interchanged a great deal of traffic to Southern Pacific in Ogden, Utah, bound to and from Central California. On February 23, 1985, UP and SP locomotives wait while a t... (more)

ZLAME passes a tied down IG4LB at Pomona. ZLAME is on the original LASL/UP LA Sub while IG4LB is on the ex-SP Alhambra Sub.

The UP 1111 awaits a recrew at Pomona.

On a wintery February 4, 2004, Union Pacific’s Grand Junction, Colorado, to Salt Lake City manifest freight climbs the grade over Soldier Summit at Kyune, Utah.

A Union Pacific coal train has just about finished unloading at the Xcel Energy Hayden Station power plant located on a short spur off the Craig Branch just east of the east switch of Dawson sidin... (more)

A westbound manifest on the UP Jefferson City Sub crosses the Meramec River at Sherman, Missouri. The Meramec River dumps into the Mississippi River about 20 miles downstream from this location.

UP 5485, 6347, and 7266 roll across the American Falls Bridge. The American Falls dam is behind the bridge.