Railroad worker safety tags used to account for who is off and on the Union Pacific’s No. 4014 “Big Boy” are seen as it makes a stop in Hempstead, Friday, Oct. 4, 2024.

Big Boy was put in a museum after retirement and, in 2013, the railroad bought back the unit to restore it. It toured the country for months starting in May 2019 to celebrate the 150th anniversary ...

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