Railroad Archives Online
- CollectionE0477 - BNSF Maps, Drawings and Records Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 3007 - Track
- 117 more...
- ItemEBP3618 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- ItemEBP3619 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- ItemEBP3620 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- ItemEBP3621 - Great Northern Technical Drawing, Sioux City, Iowa, 1919
- ItemEBP3622 - Great Northern Technical Drawing, Sioux City, Iowa, 1919
- ItemEBP3623 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- ItemEBP3624 - Great Northern Technical Drawing, Sioux City, Iowa, 1906
- ItemEBP3625 - Great Northern Technical Drawing, Sioux City, Iowa, 1906
- ItemEBP3626 - Great Northern Technical Drawing, Sioux City, Iowa, 1906
- 128 more...