Northern Pacific Engineering Drawing: Chemical Storage and Equipment Building at Parkwater, Washington, undated. Burlington Northern File Number 4716, Reference Number 101, Sheet 001.

Northern Pacific Engineering Drawing: Chemical Storage and Equipment Building at Parkwater, Washington, prepared in 1954. Burlington Northern File Number 4716, Reference Number 10105, Sheet 002.

Northern Pacific Engineering Drawing: Chemical Storage and Equipment Building at Parkwater, Washington, prepared in 1954. Burlington Northern File Number 4716, Reference Number 10106, Sheet 003.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1961. Burlington Northern File Number 4715, Reference Number 10107, Sheet 001.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1961. Burlington Northern File Number 4715, Reference Number 10107, Sheet 004.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1961. Burlington Northern File Number 4715, Reference Number 10107, Sheet 006.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1961. Burlington Northern File Number 4715, Reference Number 10107, Sheet 003.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1961. Burlington Northern File Number 4715, Reference Number 10107, Sheet 002.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1960. Burlington Northern File Number 4715, Reference Number 10101, Sheet 007.

Northern Pacific Engineering Drawing: Changes Account Abandonment of Power Plant at Parkwater, Washington, prepared in 1960. Burlington Northern File Number 4715, Reference Number 10111, Sheet 005.