Northern Pacific Engineering Drawing: Freight House at Longview, Washington, undated. Burlington Northern File Number 5125, Reference Number 101.

Northern Pacific Engineering Drawing: Freight House at Longview, Washington, undated. Burlington Northern File Number 5125, Reference Number 101, Sheet 003.

Northern Pacific Engineering Drawing: Unloading Ramp and Platform at Longview, Washington, prepared in 1967. Burlington Northern File Number 5125, Reference Number 10110, Sheet 002.

Northern Pacific Engineering Drawing: Unloading Ramp and Platform at Longview, Washington, prepared in 1968. Burlington Northern File Number 5125, Reference Number 10102, Sheet 001.

Northern Pacific Engineering Drawing: unnamed structure at Longview, Washington, prepared in 1972. Burlington Northern File Number 10,022, Reference Number 10112.

Northern Pacific Engineering Drawing: Yard Office at Longview, Washington, prepared in 1960. Burlington Northern File Number 1385, Reference Number 10110, Sheet 003.

Northern Pacific Engineering Drawing: Yard Office at Longview, Washington, prepared in 1960. Burlington Northern File Number 1385, Reference Number 10110, Sheet 002.

Northern Pacific Engineering Drawing: Yard Office at Longview, Washington, prepared in 1960. Burlington Northern File Number 1385, Reference Number 10110, Sheet 001.

Northern Pacific Engineering Drawing: Yard Office at Longview, Washington, prepared in 1976. Burlington Northern File Number 1385, Reference Number 10107.

Northern Pacific Engineering Drawing: Yard Office at Longview, Washington, prepared in 1977. Burlington Northern File Number 1385, Reference Number 10103.