Railroad Archives Online
- FondsD0027 - Timothy Miller Collection
- Seri003 - Great Northern Railway Company (U.S.)
- Subseri009 - Engineering Records
- 008 - Physical plant drawing
- 008 - Tunnels
- 285 lebih...
- ItemStruc004514 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004515 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004516 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004517 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004518 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004519 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004520 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004521 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- ItemStruc004522 - Great Northern Engineering Drawing, Flathead Tunnel, Montana, 1971
- 58 lebih...