Union Pacific’s Famed ‘Big Boy No. 4014’ Preparing for Westward Summer Tour

Union Pacific’s legendary Big Boy No. 4014, the world’s largest operating steam locomotive built to conquer mountains, will make 19 whistle-stops in five states this summer during its 2024 Westward Bound Tour from Wyoming to California.

Union Pacific’s famed Big Boy No. 4014, the world’s largest steam locomotive, will return to the rails this summer with a scenic tour across mountain ranges and high desert vistas in four western states: Wyoming, Utah, Nevada and California.

Union Pacific’s famed Big Boy No. 4014, the world’s largest steam locomotive, will return to the rails this summer with a scenic tour across mountain ranges and high desert vistas in four western states: Wyoming, Utah, Nevada and California.