Railroad Archives Online
- FondoE0477 - BNSF Maps, Drawings and Records Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Sottoserie009 - Engineering Records
- 007 - Track
- 30 in più...
- Unità documentariaEBP1206 - Great Northern Technical Drawing, Crossing in Sioux Falls, South Dakota, 1940
- Unità documentariaEBP1268 - Great Northern Track Technical Drawing, undated
- Unità documentariaEBP1269 - Great Northern Track Technical Drawing, undated
- Unità documentariaEBP1270 - Great Northern Track Technical Drawing, 1906
- Unità documentariaEBP1271 - Great Northern Track Technical Drawing, undated
- Unità documentariaEBP1272 - Great Northern Track Technical Drawing, 1966
- Unità documentariaEBP1273 - Great Northern Track Technical Drawing, 1966
- Unità documentariaEBP1304 - Great Northern Track Technical Drawing, 1896
- Unità documentariaEBP1323 - Eastern of Minnesota Railroad Signal Technical Drawing, undated
- 215 in più...