Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3003 - Maintenance Facilities
- 599 more...
- ItemStruc005742 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1912
- ItemStruc005743 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, undated
- ItemStruc005744 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1911
- ItemStruc005745 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1912
- ItemStruc005746 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, undated
- ItemStruc005747 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1912
- ItemStruc005748 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, undated
- ItemStruc005749 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1912
- ItemStruc005750 - Northern Pacific Engineering Drawing, Boiler House at Parkwater, Washington, 1912
- 703 more...