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 3008 - Tunnels
- 25 more...
- ItemJSBP1027 - Great Northern Railway Historical Society Blueprint Collection JSBP1027, Crater, Washington, undated.
- ItemJSBP1204 - Great Northern Railway Historical Society Blueprint Collection JSBP1204, Delton, Montana, 1957.
- ItemJSBP1429 - Great Northern Railway Historical Society Blueprint Collection JSBP1429, Everett, Washington, 1900.
- ItemJSBP2168 - Great Northern Railway Historical Society Blueprint Collection JSBP2168, Hardy, Montana, 1918.
- ItemJSBP2929 - Great Northern Railway Historical Society Blueprint Collection JSBP2929, Kalispell Division, 1944.
- ItemJSBP2939 - Great Northern Railway Historical Society Blueprint Collection JSBP2939, Katka, Idaho, 1919.
- ItemJSBP2940 - Great Northern Railway Historical Society Blueprint Collection JSBP2940, Katka, Idaho, 1919.
- ItemJSBP3152 - Great Northern Railway Historical Society Blueprint Collection JSBP3152, Leona, Montana, 1920.
- ItemJSBP4321 - Great Northern Railway Historical Society Blueprint Collection JSBP4321, Scenic, Washington, 1929.
- 22 more...