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
- 299 more...
- ItemStruc002652 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1933
- ItemStruc002653 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1933
- ItemStruc002654 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1933
- ItemStruc002655 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1941
- ItemStruc002656 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1952
- ItemStruc002657 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, undated
- ItemStruc002658 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, 1932
- ItemStruc002659 - Northern Pacific Engineering Drawing, Roundhouse, Frame 125 Foot at Yakima, Washington, undated
- ItemStruc002660 - Northern Pacific Engineering Drawing, Engine Terminal at Missoula, Montana, 1933
- 1003 more...