Railroad Archives Online
- フォンドE0477 - BNSF Maps, Drawings and Records Collection
- シリーズ003 - Great Northern Railway Company (U.S.)
- サブシリーズ009 - Engineering Records
- 007 - Track
- 129 more...
- アイテムEBP3635 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- アイテムEBP3636 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- アイテムEBP3637 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- アイテムEBP3638 - Great Northern Technical Drawing, Sioux City, Iowa, undated
- アイテムEBP3661 - Great Northern Track Technical Drawing, 1907
- アイテムEBP3662 - Great Northern Track Technical Drawing, 1900
- アイテムEBP3663 - Great Northern Track Technical Drawing, 1900
- アイテムEBP3664 - Great Northern Track Technical Drawing, 1907
- アイテムEBP3719 - Great Northern Track Technical Drawing, 1906
- 116 more...