A Black Butte, Wyoming to Valmy, Nevada coal load departs downtown Salt Lake City on Nov. 4, 1995.

A pair of Union Pacific SD40Ns switch at North Yard while a UTA FrontRunner commute enters the fray during the afternoon rush in Salt Lake City.

The Amoco refinery in Salt Lake City was undergoing major expansion when this photo was taken on Sept. 23, 1995. The landscape looks southeast from Everett Avenue in the middle of the Bamberger Ra... (more)

A 15 car Salt Lake City to Stockton Z train departs North Yard for a trip west on the old Western Pacific on August 12, 1995.

When They Were King: A lineup of Union Pacific 'Comfort Cab' SD60Ms are readied for departure from North Yard with the APLA, CHLAZ, and APOA trains in Salt Lake City on Jan. 29, 1995.

Something is not quite right with the 6936.

Union Pacific Jet Snow Blower JSB0201 awaits an opportunity to clear switches of ice and snow around the Salt Lake Terminal on Nov. 22, 2015.

This moment of brilliant color brought to you by Kodachrome 25 slide film.

The conductor working Union Pacific's Los Angeles to Denver Z-train flags freshly painted C40-8 No. 9253 across Orange Street west of downtown Salt Lake City the morning of Sept. 17, 1994.

Union Pacific's Stockton, California to Canal Street, Illinois Z-train enters Salt Lake City on the former WP mainline at 10th West on Sept. 17, 1994. Utah Power & Light Co's natural gas fired 353... (more)

One of Union Pacific Railroad's most popular Goodwill Ambassadors is a miniature train. Built in UP's Omaha locomotive and rail car repair shops in 1956, the mini-train is sometimes called the "Pr... (more)

Utah Transit Authority and Union Pacific locomotives are pictured at North Yard in Salt Lake City on Halloween 2015.

Minutes after the passage of a big thunder storm, the City of Los Angeles steam special awaits departure from Salt Lake City for Ogden, Green River, and Cheyenne.

Union Pacific 3985 is a four-cylinder simple articulated 4-6-6-4 Challenger-type steam locomotive. It was built in 1943 by the American Locomotive Company of Schenectady, New York. The Challenger ... (more)

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