Railroad Archives Online
- FondsE0477 - BNSF Maps, Drawings and Records Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série009 - Engineering Records
- 008 - Physical plant drawing
- 002 - Depots and Freighthouses
- 137 en plus...
- PièceEBP4468 - Great Northern Technical Drawing, Wahpeton, North Dakota, 1910
- PièceEBP4469 - Great Northern Technical Drawing, Wahpeton, North Dakota, 1910
- PièceEBP4470 - Great Northern Technical Drawing, Wahpeton, North Dakota, 1910
- PièceEBP4471 - Great Northern Technical Drawing, Wahpeton, North Dakota, 1910
- PièceEBP3848 - Great Northern Technical Drawing, Saint Paul, Minnesota, 1914