Northern Pacific passenger train number 26, the eastbound Vista-Dome North Coast Limited, at Belgrade, Montana, behind three-unit diesel locomotive led by unit 6505A, in June 1955. Conductor Larson, engineer Norris. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive

Northern Pacific passenger train number 26, the eastbound Vista-Dome North Coast Limited, at Belgrade, Montana, behind three-unit diesel locomotive led by unit 6505A, in June 1955. Conductor Larson, engineer Norris. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive

Northern Pacific tunnel at Hoppers, Montana, May 23, 1952. Two-track tunnel in process of being daylighted, mainline being single-tracked. Photo by J.M. Fredrickson. Other Subject Classes: tunnel, track

Northern Pacific tunnel at Hoppers, Montana, May 23, 1952. Looking toward two-track tunnel in process of being daylighted, mainline being single-tracked. Photo by J.M. Fredrickson. Other Subject Classes: tunnel, track

A Northern Pacific class Z-5 leading a freight train on the Yellowstone Division circa 1938. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, freight train.

Northern Pacific train maybe at end of track in Montana during construction. Notice freight cars on both ends of the locomotive, wagons, teamsters and a teepee below the railroad grade circa 1860. Photo by F.J. Haynes, J.M. Fredrickson collection. Other Subject Classes: freight train.

Northern Pacific 4025, a class Z-3, on the Milwaukee mainline bridge over the Clark Fork River at Saint Regis, Montana, on May 28, 1952. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, truss bridge.

Northern Pacific steam locomotive 979 at Brainerd, Minnesota, on June 07, 1916. Number 979 is a class L built by Baldwin in 1883. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 783 with a passenger train, circa 1890. Number 783 is a class C-6 built by Portland in 1883. J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 692 at Parkwater, Washington, on September 30, 1916. Number 692 is a class B-3 built by Grant in 1888. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo