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
- 1333 more...
- ItemBB015662 - Northern Pacific Engineering Drawing: Shop Plan - Bottom Chord, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015663 - Northern Pacific Engineering Drawing: Shop Plan - Transverse Bracing, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015664 - Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Brace, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015665 - Northern Pacific Engineering Drawing: Shop Plan - Stringers, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015666 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015667 - Northern Pacific Engineering Drawing: Shop Plan - Girders, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015668 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015669 - Northern Pacific Engineering Drawing: Shop Plan - Stringers, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- ItemBB015670 - Northern Pacific Engineering Drawing: Shop Plan - Bents, Bridge 7 - Marent Gulch, West of Nagos, Montana, undated
- 6386 more...