The Cascade low level tunnel.
Subtitle: An inquiry as to economic feasibility of building a tunnel through the Cascade range in Washington for rail and vehicular traffic as proposed by the late Brigadier General H. F. [!] Chittenden.
By: Washington State planning council, Olympia, Washington. August 1, 1936.
Contributors: Chittenden, Hiram Martin, 1858-1917.
Published: 1936
Place of publication: [Olympia
Language: eng
Number of pages: 86
Subjects: Tunnels -- Cascade Range; Cascade Range
Other titles: Cascade tunnel report.
Notes: On cover: Cascade tunnel report. Washington State planning council.

Mimeographed.