Northern Pacific steam locomotive 2663 at Livingston, Montana, on June 08, 1955. Number 2663 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2663 at Livingston, Montana, on June 08, 1955. Number 2663 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2663 at Livingston, Montana, on June 08, 1955. Number 2663 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2663 at Livingston, Montana, on June 08, 1955. Number 2663 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2670 at Livingston, Montana, on August 23, 1943. Number 2670 is a class A-4 built by Baldwin in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2672 at Livingston, Montana, on August 23, 1943. Number 2672 is a class A-4 built by Baldwin in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2673 at Livingston, Montana, on August 18, 1949. Number 2673 is a class A-4 built by Baldwin in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2676 at Livingston, Montana, on August 22, 1943. Number 2676 is a class A-4 built by Baldwin in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific 2681, a class A-5, leads a westbound extra freight up Bozeman Pass near Livingston, Montana, with the Absorka Mountains in the background in September 1953. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train, semaphore signal.

Northern Pacific 2681, a class A-5, leads a westbound extra freight up Bozeman Pass west of Livingston, Montana, in September 1953. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train.