The BIG BOY 4014 Rides Again In 2026

The world’s largest operating steam locomotive is going coast to coast. Union Pacific Big Boy No. 4014 returns to the rails in 2026 for a historic nationwide tour celebrating engineering innovation and 250 years of American history. In this documentary, we break down the power, scale, and logistics behind the legendary 4-8-8-4 Big Boy as it travels from Wyoming to the West Coast and beyond — revealing how a 1941 steam giant continues to captivate modern railfans across America.