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
- 1 more...
- ItemStruc000028 - Northern Pacific Engineering Drawing, Yardmaster Tower (also Duluth, Minnesota) at Pasco, Washington, 1969
- ItemStruc000029 - Northern Pacific Engineering Drawing, Yardmaster Tower (also Duluth, Minnesota) at Pasco, Washington, 1969
- ItemStruc000030 - Northern Pacific Engineering Drawing, Yardmaster Tower (also Duluth, Minnesota) at Pasco, Washington, 1969
- ItemStruc000031 - Northern Pacific Engineering Drawing, Yardmaster Tower (also Duluth, Minnesota) at Pasco, Washington, 1969
- ItemStruc000032 - Northern Pacific Engineering Drawing, Yardmaster Tower at Pasco, Washington, 1972
- ItemStruc000033 - Northern Pacific Engineering Drawing, Yardmaster Tower at Pasco, Washington, 1972
- ItemStruc000034 - Northern Pacific Engineering Drawing, Yardmaster Tower at Pasco, Washington, 1972
- ItemStruc000035 - Northern Pacific Engineering Drawing, Yardmaster Tower at Pasco, Washington, 1972
- ItemStruc000207 - Northern Pacific Engineering Drawing, Depot at Craigmont, Idaho, 1972
- 1652 more...