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 3002 - Depots and Freighthouses
- 508 more...
- ItemStruc005241 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1956
- ItemStruc005242 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1959
- ItemStruc005243 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1967
- ItemStruc005244 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1972
- ItemStruc005245 - Northern Pacific Engineering Drawing, Depot at Gardiner, Montana, 1955
- ItemStruc005246 - Northern Pacific Engineering Drawing, Depot at Gardiner, Montana, 1955
- ItemStruc005247 - Northern Pacific Engineering Drawing, Depot at Gardiner, Montana, 1955
- ItemStruc005248 - Northern Pacific Engineering Drawing, Depot at Gardiner, Montana, 1955
- ItemStruc005249 - Northern Pacific Engineering Drawing, Depot at Gardiner, Montana, 1955
- 1145 more...