Railroad Archives Online
- FondsE0477 - BNSF Maps, Drawings and Records Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série009 - Engineering Records
- 007 - Track
- 214 en plus...
- PièceEBP4095 - Montana Central Railway Technical Drawing, Summit Valley, Montana, 1888
- PièceEBP4104 - Great Northern Diagram and Track Profile, Superior, Wisconsin, 1943
- PièceEBP4111 - Great Northern Technical Drawing, Superior, Wisconsin, 1907
- PièceEBP4114 - Great Northern Technical Drawing, Superior, Wisconsin, 1907
- PièceEBP4151 - Great Northern Track Technical Drawing, 1966
- PièceEBP4154 - Great Northern Track Technical Drawing, 1966
- PièceEBP4244 - Great Northern Track Technical Drawing, 1909
- PièceEBP4245 - Great Northern Track Technical Drawing, 1909
- PièceEBP4246 - Great Northern Track Chart, 1907
- 31 en plus...