Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3001 - Railroad mainline
- 20 more...
- ItemTRWahl0791 - Great Northern Track, Burlington, Washington, undated
- ItemTRWahl0792 - Great Northern Track, Burlington, Washington, undated
- ItemTRWahl0813 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl0819 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl0820 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl0853 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl1055 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl1091 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl0131 - Great Northern Track, Scenic, Washington, undated
- 1 more...