Squak Mountain Trail Run

APR
18
2026
Run scenic singletrack at Squak Mountain State Park, from a kids race to a half marathon and a tough 50K that climbs to ridge views through mossy trees and streams. Expect technical descents, limited parking and handmade solar powered finisher swag.
Sat 18 Apr 2026
50 kilometers Half Marathon 12 kilometers

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Squak Mountain Trail Runs : April 18, 2026

Squak Mountain Trail Runs is organized by Evergreen Trail Runs at Squak Mountain State Park, 21492 SE May Valley Rd, Issaquah, Washington. Distances offered include:

  • 12K
  • Half marathon
  • 50K
  • Kids Race (0.5 mi)
  • 12K Brunch Run

The event takes place on established singletrack within a forested park. Trails pass moss-covered trees, ferns, and streams and offer views of the surrounding mountains. Trails are open to other users during the event, including hikers and equestrians on the first small loop. A Discover Pass is required to park at the trailhead. Parking at the May Valley Loop trailhead is limited; when the lot fills, parking is available on S.E. 135th St. Do not park on May Valley Rd. All races are cupless - participants must carry a refillable container.

Course and logistics

The event uses three primary loops: a 12K loop, a half-marathon loop, and a 50K loop. The 50K distance includes additional loops and runners complete the main 50K loop twice. All distances start and finish at the main Squak Mountain Trailhead and begin with a steady climb. The half and 50K routes summit the southeast peak; the half also summits the west peak via part of the Chybinski Loop. All routes descend past remnants of the historic Bullitt homestead on a technical, fast section of trail.

Elevation gain:

  • 12K: 1,800 ft
  • Half marathon: 3,400 ft
  • 50K: 8,300 ft

Aid station locations are published for each distance and include multiple stations on the half and 50K courses. A free Woodland Speeders kids race follows a 0.5 mile, mostly flat interpretive loop. Finisher swag is handmade and produced using solar power. Visit the organization's website for the most recent information.

50 km
50k
Half Marathon
Half Marathon
12 km
12k

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