Chicago Burlington & Quincy No. 5629 (S) built in 1940 by the Burlington Route Railroad in their own shops and used for heavy freight and passenger service. It remained in service until the early 1960s, when it was purchased by the Intermountain Chapter of the National Railway Historical Society and moved to the Colorado Railroad Museum in 1963. No. 5629 is one of only four Burlington locomotives of its type still in existence
