Hyak Passage 25K

OCT
3
2026
A 25K out-and-back trail race at Snoqualmie Pass through the dark Snoqualmie Tunnel to Annette Lake with 1,800 ft gain, two aid stations, and mandatory headlamp.
Sat 3 Oct 2026
16 miles

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Hyak Passage 25K : Snoqualmie Pass, Washington

Hyak Passage is a 25K mountain trail race on the Palouse to Cascades Trail that runs from the Hyak Trailhead to Annette Lake and back. The out-and-back route includes two passages through the Snoqualmie Tunnel, roughly 1,800 feet of elevation gain, and a mix of wide gravel and forested singletrack.

The course begins with a long, dark tunnel with no natural light, continues on runnable gravel, then climbs rooty, rocky singletrack to Annette Lake before returning along the same route. Two staffed aid stations provide PB&J sandwiches, fruit, snacks, plain water, Open Fuel endurance drink mix, and first-aid supplies; volunteers carry supplies 3.5 miles to the Annette Lake station. The Trailhead Aid Station is the only crew-access and drop-bag point. Runners must reach that station before its cutoff to receive an official finish.

Required gear includes a headlamp for both tunnel passages. The event is cupless; runners should bring a bottle or reusable cup and carry sufficient hydration, nutrition, and layers for variable October mountain weather. Course junctions are marked with yellow and black arrows and pink and black checkered confidence ribbons. Bibs must be worn visibly on the front for timing and check-ins.

The race takes place on Snoqualmie Tribe ancestral lands; visitors are asked to stay on designated trails and support stewardship efforts. The event date is October 3, 2026. Visit the organization's website for the most recent information.

16 mi
25k

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