Northern Pacific Engineering Drawing: Tie Treating Plant at Paradise, Montana, prepared in 1982. Burlington Northern File Number 1622, Reference Number 101, Sheet EN6.

Northern Pacific Engineering Drawing: Tie Treating Plant at Paradise, Montana, prepared in 1982. Burlington Northern File Number 1622, Reference Number 10105, Sheet EN3.

Northern Pacific Engineering Drawing: Tie Treating Plant at Paradise, Montana, prepared in 1982. Burlington Northern File Number 1622, Reference Number 10105, Sheet EN2.

Northern Pacific Engineering Drawing: Tie Treating Plant Plan Reference Files at Brainerd, Minnesota, prepared in 1980. Burlington Northern File Number 1485, Reference Number 10110, Sheet M-4.

Northern Pacific Engineering Drawing: Switchmen's Service Building at Klickitat Avenue Yard at Seattle, Washington, prepared in 1965. Burlington Northern File Number 4858, Reference Number 10104, Sheet 001.

Northern Pacific Engineering Drawing: Switchmen's Service Building at Hoquiam, Washington, prepared in 1967. Burlington Northern File Number 5114, Reference Number 10105, Sheet 001.

Northern Pacific Engineering Drawing: Switchmen's Service Building, Changes Account, Caboose Pooling Agreement at Auburn, Washington, prepared in 1967. Burlington Northern File Number 4666, Reference Number 10112, Sheet 016.

Northern Pacific Engineering Drawing: Switchmen's Service Building at Auburn, Washington, prepared in 1958. Burlington Northern File Number 4666, Reference Number 10105, Sheet 001.

Northern Pacific Engineering Drawing: Switchmen's Service Building at Auburn, Washington, prepared in 1957. Burlington Northern File Number 4666, Reference Number 10105, Sheet 002.

Northern Pacific Engineering Drawing: Switchmen's Service Building at Aberdeen, Washington, prepared in 1962. Burlington Northern File Number 5202, Reference Number 10103, Sheet 002.