Union Pacific class S-6 0-6-0 No. 4466 was the last shop switcher at the railroad's Cheyenne, Wyoming shops, and then ended its UP career working at Grand Island, Nebraska where it remained till 1973. In 1978 it was donated to the California State Railroad Museum in Sacramento, where it serves as one of the museum's two operable steam locomotives. This view was taken next to the Cheyenne roundhouse around 1957; it came from my brother David's collection, but the photographer is unknown. No. 4466 was outshopped by Lima Locomotive Works in 1920. It has 51-inch drivers, 21x26-inch cylinders, and a boiler pressure of 180 p.s.i. The locomotive weighs 159,000 pounds and develops 34,400 pounds of tractive effort. Although one source identifies the engine as oil-fired, another photo taken by my brother in August, 1957 clearly reveals it as a coal-burner.