Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number , Reference Number 10105, Sheet 002.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number , Reference Number 10105.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number , Reference Number 10111, Sheet 044.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number , Reference Number 10111, Sheet 051.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number 299-4, Reference Number 10105, Sheet 005.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number 299-4, Reference Number 10105, Sheet 004.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number 299-4, Reference Number 10105, Sheet 003.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number 299-4, Reference Number 10105, Sheet 001.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, prepared in 1912. Burlington Northern File Number , Reference Number 10105, Sheet G-5.

Northern Pacific Engineering Drawing: Engine Facilities at Parkwater, Washington, undated. Burlington Northern File Number , Reference Number 101.