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
- 787 more...
- ItemStruc006845 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006846 - Northern Pacific Engineering Drawing, Roundhouse at Pasco, Washington, 1939
- ItemStruc006870 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Seattle, Washington, 1958
- ItemStruc006871 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Butte, Montana, 1948
- ItemStruc006872 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Seattle, Washington, 1958
- ItemStruc006873 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Butte, Montana, 1948
- ItemStruc006874 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Spokane, Washington, 1950
- ItemStruc006875 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Helena, Montana, 1948
- ItemStruc006876 - Northern Pacific Engineering Drawing, Soil Can Cleaning Building at Missoula, Montana, 1959
- 515 more...