Railroad Archives Online
- FondoD0027 - Timothy Miller Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Subserie009 - Engineering Records
- 008 - Physical plant drawing
- 008 - Tunnels
- 38 más...
- Unidad documental simpleStruc001457 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001458 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001459 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1955
- Unidad documental simpleStruc001460 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001461 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001462 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001463 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001464 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001465 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- 305 más...