Built in 1928 by Baldwin Locomotive Works in Pennsylvania for the Mud Bay Logging Company to haul logs. It was Numbered 8. When the company dissolved in 1941, this locomotive was sold to Weyerhaeuser Timber Company for $23,500, where it was renumbered 6. As the last steam locomotive operated by the company, it was retired in 1960 and displayed at the Klamath Falls Mill in 1962. In 1965, this locomotive was donated to the Northwest Railway Museum and sits on static display inside the fence along Railroad Ave between the Snoqualmie PHWY and SE Northern Street as of today.