The ORHF oversees the preservation of three city-owned steam locomotives: Southern Pacific 4449 (SP 4449), Spokane, Portland & Seattle 700 (SP&S 700), and Oregon Railroad & Navigation 197 (OR&N 197).
In addition to these engines, several vintage passenger cars, formerly owned and operated by the Great Northern Railway and the Southern Pacific Railroad, are owned and maintained by Northwest Rail Museum and the Pacific Northwest Chapter of the National Railway Historical Society.