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
- 211 more...
- ItemBB032571 - Northern Pacific Engineering Drawing: Shop Plan - Pit Modifications, Track Scale, Centralia, Washington, undated
- ItemBB032572 - Northern Pacific Engineering Drawing: General Installation Notes, Track Scale, Centralia, Washington, undated
- ItemBB032573 - Northern Pacific Engineering Drawing: General Plan, Track Scale, Spokane, Washington, undated
- ItemBB032574 - Northern Pacific Engineering Drawing: Approach Slab Details, Track Scale, Spokane, Washington, undated
- ItemBB032575 - Northern Pacific Engineering Drawing: Pit Details, Track Scale, Spokane, Washington, undated
- ItemBB032576 - Northern Pacific Engineering Drawing: Sump Details and Bill of Material, Track Scale, Spokane, Washington, undated
- ItemBB032577 - Northern Pacific Engineering Drawing: Shop Plan - Installation Detail, Track Scale, Spokane, Washington, undated
- ItemBB032578 - Northern Pacific Engineering Drawing: Shop Plan - Field Cables, Track Scale, Spokane, Washington, undated
- ItemBB032579 - Northern Pacific Engineering Drawing: Shop Plan - Field Cables, Track Scale, Spokane, Washington, undated
- 108 more...