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
- 731 more...
- ItemStruc006771 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1957
- ItemStruc006772 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1957
- ItemStruc006773 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1957
- ItemStruc006774 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1957
- ItemStruc006775 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1960
- ItemStruc006776 - Northern Pacific Engineering Drawing, Sanding Tower - Ogle at Parkwater, Washington, 1957
- ItemStruc006777 - Northern Pacific Engineering Drawing, Chemical Storage and Equipment Building at Parkwater, Washington, 1954
- ItemStruc006778 - Northern Pacific Engineering Drawing, Chemical Storage and Equipment Building at Parkwater, Washington, 1954
- ItemStruc006779 - Northern Pacific Engineering Drawing, Chemical Storage and Equipment Building at Parkwater, Washington, undated
- 571 more...