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
- 4352 more...
- ItemBB019027 - Northern Pacific Engineering Drawing: General Plan/Masonry/Tie, Bridge 48 (070), West of Columbus, Montana, 1909
- ItemBB019028 - Northern Pacific Engineering Drawing: Details, Bridge 48 (070), West of Columbus, Montana, undated
- ItemBB019030 - Northern Pacific Engineering Drawing: Detail Additional Material/Arrangement, Bridge 48 (070), West of Columbus, Montana, undated
- ItemBB019031 - Northern Pacific Engineering Drawing: General Plan/Abutments, Bridge 49 - Drainage Ditch, Craver, Montana, 1909
- ItemBB019033 - Northern Pacific Engineering Drawing: General Plan/Abutments, Bridge 57 (86), Reed Point, Montana, 1909
- ItemBB019034 - Northern Pacific Engineering Drawing: General Plan/Abutments, Bridge 60 (89), West of Reed Point, Montana, 1909
- ItemBB019035 - Northern Pacific Engineering Drawing: Add Safety Walk, Bridge 60 (89), West of Reed Point, Montana, undated
- ItemBB019037 - Northern Pacific Engineering Drawing: Plan/Detail Pier/Abutment, Bridge 73 (10?) - Deer Creek, West of Elton, Montana, 1909
- ItemBB019038 - Northern Pacific Engineering Drawing: Deck Plan, Bridge 73 (10?) - Deer Creek, West of Elton, Montana, undated
- 3367 more...