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
- 335 more...
- 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.
- ItemJSBP1346 - Great Northern Railway Historical Society Blueprint Collection JSBP1346, Duluth - Superior, 1939.
- ItemJSBP1347 - Great Northern Railway Historical Society Blueprint Collection JSBP1347, Duluth - Superior, 1939.
- ItemJSBP1348 - Great Northern Railway Historical Society Blueprint Collection JSBP1348, Duluth - Superior, 1941.
- ItemJSBP1349 - Great Northern Railway Historical Society Blueprint Collection JSBP1349, Duluth - Superior, 1942.
- ItemJSBP1350 - Great Northern Railway Historical Society Blueprint Collection JSBP1350, Duluth - Superior, 1942.
- 706 more...