Railroad Archives Online
- FondoD0027 - Timothy Miller Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Subserie009 - Engineering Records
- 008 - Physical plant drawing
- 008 - Tunnels
- 160 más...
- Unidad documental simpleStruc001579 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1957
- Unidad documental simpleStruc001580 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1957
- Unidad documental simpleStruc001581 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001582 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1957
- Unidad documental simpleStruc001583 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1957
- Unidad documental simpleStruc001584 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001585 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1957
- Unidad documental simpleStruc001586 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- Unidad documental simpleStruc001587 - Great Northern Engineering Drawing, Cascade Tunnel, Washington, 1956
- 183 más...