Union Pacific’s Big Boy No. 4014, the largest operating steam locomotive, moves along the track in Leetsdale during the eastern leg of its coast-to-coast tour Saturday, July 11, 2026. (Kristina Serafini | TribLive)
Union Pacific’s Big Boy 4014 steam locomotive made its way through Western Pennsylvania, with several stop along the way, on Saturday. Here are some photos from the day.
And check out our coverage of the day:…