Avg Temps f.

68/49 at the start

Gain/Loss in ft


Furthest Aid

2.5 miles

Highest Elev.



8am (7am start available)


Flat, road-like trail

Time Limit

Not noted – 6?



Longest Climb


Summary: The course is one of the fastest in the country. The course starts at an elevation of 2,550′ at Hyak Parking lot at Snoqualmie Pass and gently descends, making the course great for fast times. After a half mile runners enter the pitch black tunnel for 2.4 miles. Runners continue traversing 5 more miles through forested slopes to the Iron Horse State Park trailhead at Rattlesnake Lake. The course continues on the Snoqualmie Valley trail through leafy second-growth forest. The race finishes at a gravel parking area along North Bend Way 2.4 miles SE of downtown North Bend.

Race Details

Lessons Learned from Race Reports

  • After a half mile runners enter the pitch black tunnel for 2.4 miles. A light source such as a headlamp is strongly recommended.
  • Be sure to review the information on parking and shuttles, as the start and finish are in different locations and there is no parking at the start.
  • No packet pickup available the day before the race; pick up the morning of by 7:15am
  • Early start available for those needing more than 5 hours


Total gain/loss: 10/2000

Total climbs: None

Map & Elevation profile

Aid stations

Total aid stations: 10

Furthest distance apart: 2.5 miles

Locations: Mile 2.6, 5.3, 8.0, 10.7, 13.4, 16.4, 18.8, 21.2, 22.8, 24.8
What’s available: Water and electrolyte drink at every aid station; gels are given out at miles 8, 16.4, and 21.2

Crew access

Not a spectator-friendly course. Best place is at the finish line!

Race qualifiers


Race Reports

Strava activities and GPX files

Race Website