Union Pacific's Big Boy No. 4014, the largest operating steam locomotive globally, is currently on its inaugural coast-to-coast tour, marking its return to service since 2019. This 1.2-million-pound, 133-foot-long locomotive, nearly 85 years old, was retired from freight duty in 1961 after traveling over one million miles. Union Pacific reacquired it in 2013 from the RailGiants Train Museum and meticulously restored it.
The tour, celebrating America's 250th birthday, began on March 29, 2026, from Sacramento, California, and will conclude on July 29 in Cheyenne, Wyoming, traversing 14 states in total, including new stops in Indiana, Ohio, New York, and Pennsylvania. The locomotive, accompanied by other historical passenger cars from Union Pacific's Heritage Fleet, has had major display events in cities like Philadelphia (where it celebrated the Fourth of July), Omaha, Buffalo, Scranton, and St. Louis. It also makes over 50 whistle-stops, drawing millions of spectators, many of whom track its progress via an online app.
Ed Dickens, senior manager of Union Pacific's Heritage Operations and the train's engineer, noted the locomotive's fully manual operation and the overwhelming emotional response from crowds, calling it a "trip of a lifetime." Safety is a key concern, with Dickens advising spectators to maintain a 25-foot distance. Despite extreme heat (e.g., 102 degrees Fahrenheit with a 112-degree heat index in Philadelphia), fans like John Seibert, a model railroad club member, and 15-year-old Brandon Westerfield have traveled to witness the "once-in-a-lifetime experience" of seeing the massive locomotive up close, often expressing profound emotion at its sight and powerful whistle.
