Railroad Archives Online
- FondsD0027 - Timothy Miller Collection
- Seri003 - Great Northern Railway Company (U.S.)
- Subseri009 - Engineering Records
- 008 - Physical plant drawing
- 008 - Tunnels
- 255 lebih...
- ItemStruc004484 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004485 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004486 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004487 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004488 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004489 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004490 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004491 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004492 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- 88 lebih...