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 3001 - Bridges
- 277 more...
- ItemBB014501 - Northern Pacific Engineering Drawing: General Details Reinforcement, Bridge 7 - Marent Gulch, West of Nagos, Montana, 1933
- ItemBB014502 - Northern Pacific Engineering Drawing: Erection Plans, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014503 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014504 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014505 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014506 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014507 - Northern Pacific Engineering Drawing: Shop Plan - Elevation, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014508 - Northern Pacific Engineering Drawing: Shop Plan - Elevation, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB014509 - Northern Pacific Engineering Drawing: Shop Plan - General Plan, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- 7442 more...