Railroad Archives Online
- CollectionE0477 - BNSF Maps, Drawings and Records Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 3004 - Maintenance of Way support
- 12 more...
- ItemEBP4206 - Great Northern Structure Technical Drawing, 1949
- ItemEBP4209 - Great Northern Structure Technical Drawing, 1925
- ItemEBP4210 - Great Northern Structure Technical Drawing, 1914
- ItemEBP4211 - Great Northern Structure Technical Drawing, 1925
- ItemEBP4213 - Great Northern Structure Technical Drawing, undated