Tunnel Light Marathon
- When
- Sun, Sep 14, 2025, 4:00 AM
- Where
- North Bend, US
- Distances
- Marathon
- Terrain
- TRAIL
- Typical weather
- Mild
- Organizer
- Tunnel Marathons
About
The Tunnel Light Marathon is scheduled for September 14, 2025, starting at Hyak Sno-Park near Snoqualmie Pass, Washington, USA, and is organized by Tunnel Marathons. This point-to-point course features a consistent downhill grade, descending over 2,000 feet (approximately 610 meters) from start to finish. Runners begin with a unique 2.4-mile journey through the unlit Snoqualmie Tunnel—headlamps are recommended—before emerging to scenic views of the Cascade Mountains and waterfalls. The packed gravel trail and gentle decline make it an excellent opportunity for participants aiming to achieve personal records or qualify for the Boston Marathon.