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
- 340 more...
- 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.
- 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.
- 701 more...