Western Pacific No. 481 was a semi-streamlined class GS-64 4-8-4 "Northern" type steam locomotive built by the Lima Locomotive Works in 1943 for the Western Pacific Railroad.
The locomotive spent years working on the Western Pacific Railroad hauling passenger trains and in freight service as well.
In 1953 it was sold to the Southern Pacific for spare parts, but kept the tenders and converted them to steam generators for rotary snowplows.
Later that same year in 1953, No. 481 was retired from service and it was sold for scrap.