Snoqualmie Tunnel
C. M. & St. P. Ry. Tunnel #50, Built 1912–1914

This scene was photographed on August 18, 2007, from the west portal of the Snoqualmie Tunnel at
Rockdale. After having walked 2.3 miles through the tunnel from the east portal at Hyak, the scene was
photographed in the late afternoon when the sun angle was low enough to shine a ways into the tunnel.
The railroad tunnel opened for regularly scheduled train service on January 24, 1915. The tunnel runs
straight, except for a short six-degree curve at the east end and a short three-degree curve at the west
end. The Milwaukee Road discontinued operations in 1980 and the tracks were later removed. The
tunnel is now part of the Iron Horse State Park trail corridor and is the longest trail tunnel in the United
States.
Snoqualmie Tunnel Centennial, January 1915 – January 2015
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Andrew Craig Magnuson
Forks, Washington
August 20, 2007
Revised January 15, 2015
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