The locomotive was built with saddle tanks for Weyerhaeuser Lumber as #110 and operated out of Camp McDonald, WA, in the Longview area.
In 1954, #110 was bought by the logging company Rayonier, Inc. Renumbered #111, it worked on the ex-Polson Logging Grays Harbor County, WA, lines and then as a standby on the New London-Railroad Camp-Crane Creek mainline until 1967.
At some time, it was mated to a slope back tender from Polson Logging #18.
In 1968, #111 was bought by the California Western for the Fort Bragg-Willits Super Skunk tourist trains and it was renumbered 46.
Today the locomotive is on static display at The Pacific Southwest Railway Museum in Campo, CA. There are plans to restore her to operation.
- This was the second to last logging mallet outshopped by the company.
- The locomotive remained on CWR property until 1984, when it was donated to a museum. The railroad later stated on its Facebook page in 2014, however, that the locomotive should never have left their property. It was retired because it was considered "too light on its feet".
- In 1974 it doubleheaded a passenger train and later a freight train with California Western No. 45.