A lash up of seven DD35 units are pictured in Salt Lake City on July 29, 1977.

Union Pacific's IDVSCX-29 meets Utah Railway's RUT611 local at North Yard in Salt Lake City on May 29, 2014.

Union Pacific's Global 1 to City of Industry stacker departs North Yard in Salt Lake City while a UTA FrontRunner commute arrives from Ogden. May 22, 2014

Union Pacific's Wendover Local arrives at North Yard in Salt Lake City on May 22, 2014.

While the Genesee & Wyoming, Inc. took control of the Utah Railway more than a decade ago, from time to time a pure red and gray locomotive consist comes together. EMD GP40s 3001 and 3002 pull an ... (more)

Union Pacific's West Colton to North Platte manifest meets a Long Beach to Global 4 stacker at North Yard in Salt Lake City. April 30, 2014

Union Pacific ES44AC No. 7867 shoves on a Global 1, IL to City of Industry, CA stacker westbound through Salt Lake City on May 8, 2014.

UP 4014 begins the fourth leg of its 'Return Home Tour' departing Salt Lake City for Ogden on May 4, 2014.

With a Kansas City Southern SD70ACe 'Southern Belle' in the power consist, UP's KLBG2 glides through Salt Lake City the evening of April 23, 2014.

Looking resplendent in fresh paint, a GP15-1 awaits a call to serve on Monday's Fourth South Switcher.

UP's Chevron Local pulls 27 cars through CP C784, Salt Lake City on April 10, 2014.

A Canadian visitor assists UP's Cheyenne to Roper auto train through Salt Lake City on April 10, 2014.

A UP GP15-1/SD40N combo pull cars from North Yard in Salt Lake City on April 10, 2014.

Utah Railway's RUT312 local delivers tank cars for the Tesoro Refinery at UP North Yard in Salt Lake City. The 2008 just returned from a rebuild and a repaint at Genesee & Wyoming's Panama City, F... (more)

Union Pacific's Wendover Local arrives at North Yard in Salt Lake City on April 10, 2014.