Union Pacific's Big Boy locomotive is legendary. A true icon from the days when steam power on the railroad was at its pinnacle. When diesels took over all the Big Boys were retired to museums or sold for scrap. Generatins of rail fans who never knew what it was like to experience Big Boy in operation first hand will now get that chance. Union Pacific has a long a proud tradition of mainline steam operation and Big Boy #4014 will join the stable. Well done UP!