Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3001 - Bridges
- 330 more...
- ItemJSBP1337 - Great Northern Railway Historical Society Blueprint Collection JSBP1337, Duluth - Superior, 1933.
- ItemJSBP1338 - Great Northern Railway Historical Society Blueprint Collection JSBP1338, Duluth - Superior, 1934.
- ItemJSBP1339 - Great Northern Railway Historical Society Blueprint Collection JSBP1339, Duluth - Superior, 1935.
- ItemJSBP1340 - Great Northern Railway Historical Society Blueprint Collection JSBP1340, Duluth - Superior, 1935.
- ItemJSBP1341 - Great Northern Railway Historical Society Blueprint Collection JSBP1341, Duluth - Superior, 1935.
- ItemJSBP1342 - Great Northern Railway Historical Society Blueprint Collection JSBP1342, Duluth - Superior, 1937.
- ItemJSBP1343 - Great Northern Railway Historical Society Blueprint Collection JSBP1343, Duluth - Superior, 1937.
- ItemJSBP1344 - Great Northern Railway Historical Society Blueprint Collection JSBP1344, Duluth - Superior, 1938.
- ItemJSBP1345 - Great Northern Railway Historical Society Blueprint Collection JSBP1345, Duluth - Superior, 1938.
- 711 more...