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
- 413 more...
- ItemBB014657 - Northern Pacific Engineering Drawing: Plan/Elevation for Abutment, Bridge 136 (307/12), Frenchtown, Montana, 1902
- ItemBB014658 - Northern Pacific Engineering Drawing: Detail of Remodel Structure, Bridge 136 (307/12), Frenchtown, Montana, undated
- ItemBB014659 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 136 (307/12), Frenchtown, Montana, undated
- ItemBB014660 - Northern Pacific Engineering Drawing: Alter Abutment, Bridge 94.2, West of Colby, Montana, 1928
- ItemBB014662 - Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 37 - Little Blackfoot Creek, Avon, Montana, 1909
- ItemBB014664 - Northern Pacific Engineering Drawing: Proposed Footwalk, Bridge 37 - Little Blackfoot Creek, Avon, Montana, undated
- ItemBB014665 - Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 38 - Little Blackfoot Creek, West of Avon, Montana, 1909
- ItemBB014666 - Northern Pacific Engineering Drawing: Plan/Elevation Abutment, Bridge 38 - Little Blackfoot Creek, West of Avon, Montana, undated
- ItemBB014667 - Northern Pacific Engineering Drawing: Tie Plan, Bridge 38 - Little Blackfoot Creek, West of Avon, Montana, undated
- 7306 more...