Northern Pacific steam locomotive 5125 at Livingston, Montana, on June 08, 1955. Number 5125 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5126 at Livingston, Montana, on August 23, 1943. Number 5126 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5131 at Livingston, Montana, on May 23, 1952. Number 5131 is a class Z-8 built by Alco-Schenectady in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5136 at Livingston, Montana, on May 23, 1952. Number 5136 is a class Z-8 built by Alco-Schenectady in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5147 at Livingston, Montana, on May 23, 1952. Number 5147, a class Z-8 built by Alco-Schenectady in 1944, passes with a freight train. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in freight train

Northern Pacific steam locomotive 5147 at Livingston, Montana, on May 23, 1952. Number 5147, a class Z-8 built by Alco-Schenectady in 1944, passes with a freight train. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in freight train

Northern Pacific steam locomotives at Livingston, Montana, undated. Photograph by Wade Stevenson.

Northern Pacific passenger train number 26, the eastbound North Coast Limited, led by diesel locomotive number 6513, along the Yellowstone River at Elton Bluffs, Montana, circa 1954. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive, river

Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, along Yellowstone River at Elton Bluffs, Montana, circa 1955. Image light-struck. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive, river

On board Northern Pacific passenger train number 25, the westbound Vista-Dome North Coast Limited, west of Livingston, Montana, on June 8, 1955. Looking south from vista-dome toward Absaroka Range, climbing grade between Livingston and Muir. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, mountains