Union Pacific's hot ZLAAH stack train arrives in Salt Lake City bathed in dramatic storm lighting on Oct. 20, 2015.

UP's Salt Lake City based LUE43 local returns from Centennial Park with 14 cars on a stormy Oct. 20, 2015 afternoon. The HLCX 1814 was built Missouri Pacific GP38-2 No. 883 in Jan. 1972.

A pair of SW10 switchers and CA-10 cabooses await assignment at North Yard in Salt Lake City on a chilly February 13, 1994 morning.

A colorful Long Beach to Global 4 stacker rolls through Salt Lake City on a clear and sunny Oct. 11, 2015 afternoon.

Utah Railway's RUT312 local pulls tank cars through Salt Lake City just before sunset on Oct. 7, 2015. The UTAH 3000 was built the Baltimore & Ohio 4046 in October 1971.

A trio of former Southern Pacific GP60s pull a lengthy cut of tank cars from the Chevron refinery in Salt Lake City on Oct. 7, 2015.

American President Line stack trains heading to Oakland and Los Angeles prepare to depart North Yard in Salt Lake City on August 26, 1993.

UP's YSC25R shoves a long cut of cars into track 104 at North Yard while building an MSCWC train that will depart Salt Lake City for West Colton later that evening.

A pair of Utah Railway GP38-3s pull east through Salt Lake City on the way to Woods Cross to switch tank cars at Holly Refining.

An clean EMD SD70AH leads a Global 1 to City of Industry stacker west through Salt Lake City on Sept. 5, 2015.

After spending most of the summer working in local service out of Helper Yard, UP GP40P-2 No. 1373 finds itself assigned to an RCL switch job at North Yard in Salt Lake City. The 1373 is from a cl... (more)

Union Pacific's Salt Lake City Diesel Shop, which opened in 1955, employed 500 workers during its peak in the 1970s. The shop was sold to the Utah Transit Authority in 2003, and renamed the Warm S... (more)

The Union Pacific Railroad had all kinds of neat old equipment stored behind the UP depot in Salt Lake City. I wish I had photographed more of it, but glad I captured a few. Check out this old Gen... (more)

Salt Lake City's Union Pacific Depot had its tracks removed in favor of mall development in anticipation of the 2002 Winter Olympics. Same for the Rio Grande depot down the street, where Amtrak Ca... (more)

Salt Lake Central station is bustling with activity through the day with its numerous TRAX light-rail and FrontRunner commuter trains. Once those trains have gone away for the night, two Amtrak tr... (more)