Big Boy No. 4014, built by the American Locomotive Company in 1941 for Union Pacific, is the largest operating steam locomotive in the world. Restored to service in 2019, it passes through California's High Desert near Mojave Narrows, a living reminder of the engineering, power, and ambition that helped shape the American West.
Big Boy No. 4014, built by the American Locomotive Company in 1941 for Union Pacific, is the largest operating steam locomotive in the world. Restored to service in 2019, it passes through California's High Desert near Mojave Narrows, a living reminder of the engineering, power, and ambition that helped shape the American West.