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
- 306 more...
- ItemBB035894 - Northern Pacific Engineering Drawing: 72 Foot Track Scale, Electronic Track Scale, Pasco, Washington, undated
- ItemBB037186 - Northern Pacific Engineering Drawing: Shop Plan - Motor Control, Scale, Longview, Washington, undated
- ItemBB037187 - Northern Pacific Engineering Drawing: Shop Plan - Motor Control, Scale, Longview, Washington, undated
- ItemBB037188 - Northern Pacific Engineering Drawing: Shop Plan - Remote Relay, Scale, Longview, Washington, undated
- ItemBB037189 - Northern Pacific Engineering Drawing: Rail Miter Details, Scale, Longview, Washington, undated
- ItemBB037190 - Northern Pacific Engineering Drawing: Proposed Location, Scale, Longview, Washington, undated
- ItemBB037191 - Northern Pacific Engineering Drawing: Pit Plan Pile Layout, Scale, Longview, Washington, undated
- ItemBB037193 - Northern Pacific Engineering Drawing: Walk Down Pit Entry, Scale, Longview, Washington, undated
- ItemBB037194 - Northern Pacific Engineering Drawing: Drain Plan Sump Detail, Scale, Longview, Washington, undated
- 13 more...