Northern Pacific steam locomotive 2676 at Dilworth, Minnesota, on May 20, 1952. 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 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 steam locomotive 2677 at Mandan, North Dakota, on September 14, 1946. Number 2677 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 2677 at Staples, Minnesota, on May 22, 1952. Number 2677 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 2677 at Staples, Minnesota, on May 22, 1952. Number 2677 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 2677, circa 1946. Number 2677 is a class A-4 built by Baldwin in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 2680 at Staples, Minnesota, on May 27, 1954. Number 2680 is a class A-5 built by Baldwin in 1943. 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.

Northern Pacific steam locomotive 2681 at Mandan, North Dakota, in September 1946. Number 2681 is a class A-5 built by Baldwin in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo