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
- 344 more...
- ItemJSBP1351 - Great Northern Railway Historical Society Blueprint Collection JSBP1351, Duluth - Superior, 1943.
- ItemJSBP1352 - Great Northern Railway Historical Society Blueprint Collection JSBP1352, Duluth - Superior, 1944.
- ItemJSBP1353 - Great Northern Railway Historical Society Blueprint Collection JSBP1353, Duluth - Superior, 1944.
- ItemJSBP1354 - Great Northern Railway Historical Society Blueprint Collection JSBP1354, Duluth - Superior, 1944.
- ItemJSBP1355 - Great Northern Railway Historical Society Blueprint Collection JSBP1355, Duluth - Superior, 1944.
- ItemJSBP1356 - Great Northern Railway Historical Society Blueprint Collection JSBP1356, Duluth - Superior, 1944.
- ItemJSBP1357 - Great Northern Railway Historical Society Blueprint Collection JSBP1357, Duluth - Superior, 1948.
- ItemJSBP1358 - Great Northern Railway Historical Society Blueprint Collection JSBP1358, Duluth - Superior, 1952.
- ItemJSBP1359 - Great Northern Railway Historical Society Blueprint Collection JSBP1359, Duluth - Superior, 1953.
- 697 more...