Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 194 more...
- ItemBB021121 - Great Northern Engineering Drawing: General Plan, Bridge 306, North of Conrad, Montana, 1958
- ItemBB021122 - Great Northern Engineering Drawing: General Plan, Bridge 80, South of Four Range, Montana, 1940
- ItemBB021123 - Great Northern Engineering Drawing: Piers and Abutments, Bridge 80, South of Four Range, Montana, undated
- ItemBB021124 - Great Northern Engineering Drawing: Deck Plan, Bridge 80, South of Four Range, Montana, 1969
- ItemBB021129 - Great Northern Engineering Drawing: General Plan, Bridge 271A - Private Crossing, West of Sprole, Montana, 1943
- ItemBB021130 - Great Northern Engineering Drawing: Masonry Plan, Bridge 271A - Private Crossing, West of Sprole, Montana, undated
- ItemBB021149 - Great Northern Engineering Drawing: General Plan, Bridge 230, South of Sandpoint, Idaho, 1941
- ItemBB021150 - Great Northern Engineering Drawing: Masonry Plan, Bridge 230, South of Sandpoint, Idaho, undated
- ItemBB021151 - Great Northern Engineering Drawing: Shims, Bridge 230, South of Sandpoint, Idaho, undated
- 3798 more...