Railroad Archives Online
- FondoE0477 - BNSF Maps, Drawings and Records Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Sottoserie009 - Engineering Records
- 007 - Track
- 218 in più...
- Unità documentariaEBP4151 - Great Northern Track Technical Drawing, 1966
- Unità documentariaEBP4154 - Great Northern Track Technical Drawing, 1966
- Unità documentariaEBP4244 - Great Northern Track Technical Drawing, 1909
- Unità documentariaEBP4245 - Great Northern Track Technical Drawing, 1909
- Unità documentariaEBP4246 - Great Northern Track Chart, 1907
- Unità documentariaEBP4247 - Great Northern Track Technical Drawing, 1906
- Unità documentariaEBP4248 - Great Northern Track Technical Drawing, 1898
- Unità documentariaEBP4343 - Duluth & Winnipeg Railway Track Technical Drawing, 1900
- Unità documentariaEBP4344 - Duluth & Winnipeg Railway Track Technical Drawing, undated
- 27 in più...