Tacoma Municipal Belt Line Railway Alco 0-6-0 steam locomotive number 912 at the engine terminal in Tacoma, Washington, circa 1950, built as Northern Pacific 912 in 1901. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, switching locomotive.

Tennessee, Alabama and Georgia Railway Steam Locomotive Number 322, Class F-11, undated.

The Northern Pacific Depot at Dilworth, Minnesota, undated. Located at Milepost 106.3.

The tender of Northern Pacific 2152 stored awaitng restoration at Northern Pacific Railway Museum in Topenish, Washington on October 21, 2008. Photo by GJ Werkema. Other subject classes: Locomotive-tender.

Thurston County Railway Baldwin 2-8-2 steam locomotive number 4, backs to couple to a cut of loaded log cars at an unknown log loading area, circa 1948. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, logging locomotive, log car.

Thurston County Railway Baldwin 2-8-2 steam locomotive number 4, backs to couple to a cut of loaded log cars at an unknown log loading area, circa 1948. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, logging locomotive, log car.

Unidentified Baldwin 2-6-0 steam locomotive number 82, coupled to a loaded flatcar in an unknown location, circa 1925, with a similar operation in the distance. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, flatcar.

Unidentified Climax steam locomotive hauling a donkey-engine on a flatcar, circa 1925, likely in western Washington. Photo from J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, geared locomotive.

Unidentified three-truck, Lima Shay steam locomotive number 1 parked in Portland, Oregon, in 1967. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, geared locomotive, logging locomotive.