Northern Pacific Engineering Drawing: Roundhouse Oil Separator at Pasco, Washington, prepared in 1951. Burlington Northern File Number 4641, Reference Number 10111, Sheet 003.

Northern Pacific Engineering Drawing: Roundhouse Oil Separator at Pasco, Washington, prepared in 1951. Burlington Northern File Number 4641, Reference Number 10108, Sheet 001.

Northern Pacific Engineering Drawing: Roundhouse Oil Separator at Pasco, Washington, prepared in 1950. Burlington Northern File Number 4641, Reference Number 10107, Sheet 002.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 008.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 004.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 006.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 010.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 009.

Northern Pacific Engineering Drawing: Roundhouse at Pasco, Washington, prepared in 1939. Burlington Northern File Number 4757, Reference Number 10104, Sheet 007.