Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, undated. Burlington Northern File Number 4814, Reference Number 101, Sheet 002.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10103, Sheet 004.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10103, Sheet 003.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10104.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10108.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10104, Sheet 007.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10104, Sheet 006.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10105, Sheet 001.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10104, Sheet 005.

Northern Pacific Engineering Drawing: Yard Office at Missoula, Montana, prepared in 1967. Burlington Northern File Number 4821, Reference Number 10103, Sheet 002.