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
- 2011 more...
- ItemBB016451 - Northern Pacific Engineering Drawing: Truss Modification/Repairs, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016452 - Northern Pacific Engineering Drawing: Detail of Telegraph West Support, Bridge 207 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016453 - Northern Pacific Engineering Drawing: Pier/Abutments, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016454 - Northern Pacific Engineering Drawing: Excavate Pier/Abutments, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016455 - Northern Pacific Engineering Drawing: General Plan/Pier/Abutment, Bridge 208 - Clark Fork River, West of Donlan, Montana, 1909
- ItemBB016456 - Northern Pacific Engineering Drawing: General Plan/Pier/Abutment, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016458 - Northern Pacific Engineering Drawing: Safety Walk, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016459 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- ItemBB016460 - Northern Pacific Engineering Drawing: Stress Sheet, Bridge 208 - Clark Fork River, West of Donlan, Montana, undated
- 5708 more...