Railroad Archives Online
- FondsD0027 - Timothy Miller Collection
- Seri003 - Great Northern Railway Company (U.S.)
- Subseri009 - Engineering Records
- 008 - Physical plant drawing
- 008 - Tunnels
- 270 lebih...
- ItemStruc004499 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004500 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004501 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004502 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004503 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004504 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004505 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004506 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004507 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- 73 lebih...