Hyak Halloween 25k
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Hyak Halloween 25K : Snoqualmie Pass, WA (October 25, 2025)
The Hyak Halloween 25K is a 25-kilometer trail run on Snoqualmie Tribe Ancestral Lands near Snoqualmie Pass, Washington. The course has about 1800 feet of elevation gain and the same amount of elevation loss. Organizers allow up to 7.5 hours to complete the route. Results will not be posted publicly; participants are timed for tracking and safety but finish times are not published. Cost to register is $145.
Course, aid stations, logistics, and policies
The route uses the Palouse to Cascades Trail and the Annette Lake Trail. Runners pass through the 2.25-mile Snoqualmie Tunnel at the beginning and again near the finish. Slightly more than half the course is on smooth gravel trail; the middle section (about 7 miles) follows a moderately steep, rooty/rocky single-track to Annette Lake. The last 4.25 miles mirror the opening segment in reverse. There are two aid stations: a minimal Lake Aid Station at mile 7 (water and limited food, no road access) and a full Trailhead Aid Station at mile 10.5 (water, snacks, sandwiches, electrolyte drink, gels, first aid, and hygiene products). Drop bags are available at the Trailhead Aid Station and will be transported by volunteers.
Parking is at the Hyak Trailhead on the Palouse to Cascades Trail and requires a Washington Discover Pass; the Annette Lake Trailhead requires appropriate US Forest Service or interagency passes. Costumes that are culturally respectful and non-gory are encouraged; organizers prohibit costumes that mock groups or appropriate cultures. Cutoffs occur at the aid stations and at the finish; participants who miss cutoffs may be removed from the course. Visit the organization's website for the most recent information.