Northern Pacific Engineering Drawing: Section Headquarters Building at Frenchtown, Montana, prepared in 1977. Burlington Northern File Number 1347-E1, Reference Number 10109.

Northern Pacific Engineering Drawing: Section Headquarters Building at Frenchtown, Montana, prepared in 1977. Burlington Northern File Number 1347-1, Reference Number 10108.

Northern Pacific Engineering Drawing: Section Headquarters Building at Frenchtown, Montana, prepared in 1977. Burlington Northern File Number 1347-1, Reference Number 10111.