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 3007 - Track
- 3 more...
- ItemStruc005443 - Northern Pacific Engineering Drawing, Side Warning Telltale at East Auburn, Washington, 1946
- ItemStruc005603 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1967
- ItemStruc005604 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1966
- ItemStruc005605 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1966
- ItemStruc005606 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1966
- ItemStruc005607 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1966
- ItemStruc005608 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1966
- ItemStruc005609 - Northern Pacific Engineering Drawing, Control Tower at Missoula, Montana, 1967
- ItemStruc005631 - Northern Pacific Engineering Drawing, Area Plan at Missoula, Montana, 1963
- 316 more...