Northern Pacific Engineering Drawing: unnamed structure at Helena, Montana, prepared in 1963. Burlington Northern File Number 4615, Reference Number 10103, Sheet 007.

Northern Pacific Engineering Drawing: unnamed structure at Helena, Montana, prepared in 1964. Burlington Northern File Number 4616, Reference Number 10112, Sheet 002.

Northern Pacific Engineering Drawing: unnamed structure at Helena, Montana, prepared in 1969. Burlington Northern File Number 4616, Reference Number 10112, Sheet 003.

Northern Pacific Engineering Drawing: unnamed structure at Helena, Montana, prepared in 1969. Burlington Northern File Number 4616, Reference Number 10112, Sheet 003.

Northern Pacific Engineering Drawing: unnamed structure at Helena, Montana, undated. Burlington Northern File Number 4616, Reference Number 101.

Northern Pacific steam locomotive 1201 at Helena, Montana, on May 23, 1952. Number 1201 is a class Y-3 built by Schenectady in 1901. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1201 at Helena, Montana, on May 23, 1952. Number 1201 is a class Y-3 built by Schenectady in 1901. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1202 at Helena, Montana, on May 23, 1952. Number 1202 is a class Y-3 built by Schenectady in 1901. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1202 at Helena, Montana, on May 23, 1952. Number 1202 is a class Y-3 built by Schenectady in 1901. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1382 at Helena, Montana, on July 12, 1956. This photo shows the dedication of Number 1382, a class S-4 built by Baldwin in 1902, where it will be on display near the depot in Helena. Photo by Ron V. Nixon, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, display