Squak Mountain 12K, Half-Marathon, Marathon and 50K Trail Run

April 11, 2015 in Issaquah, Washington


Register on Webscorer

Online pre-registration closes 4/9 at 11:59 pm.


Join us for a run at Squak Mountain near Issaquah, Washington and a short drive from Seattle. Squak features cushy, well-maintained trails and beautiful views of the surrounding mountains!  



This forested park in the Pacific Northwest features miles of trails in wilderness solitude with glimpses of Issaquah below. There are several trail loop options on this 2,024-foot-high mountain. We offer 12K, Half-Marathon (13.1 miles), Marathon (26.3 miles) and 50K course options. To celebrate Squak's steep ascent to the top (1,800 ft), we're creating a special prize we call "Race to the Top." The first person to reach the summit in each category will win a pair of Teko socks. 


There will be plenty of aid stations and the courses are well marked. The courses start and finish at the main Squak Mountain Trailhead (see directions tab). 


Looking forward to seeing you out there!



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12K - $36

Half Marathon - $41

Marathon - $48

50K - $53 

* Add $5 after 3/29 11:59pm, add $10 day-of if event has not sold out.



The park is located just south of Issaquah, Washington. The address for the main entrance of the park is 21492 SE May Valley Rd., Issaquah, Washington 98027.


From I-90, take exit 17. Head south on Front Street, which turns into Issaquah-Hobart Road. Drive 4.5 miles, then turn right on S.E. May Valley Road. Drive 1.5 miles, and turn right into the park.


Discover Pass

Because this is a state park, a Washington Discover Pass is required for parking inside the park. A day pass can be purchased onsite for $10 with either cash or check (exact change only). An annual pass is $35 and can be purchased in person at a licensed vendor such as Big 5 or Fred Meyers (list here) or online on the WA state parks website. The pass gives users access to all 100 developed state parks, 350 primitive recreation sites, state water access points, natural areas, and wildlife areas.


Day of run registration and check in: 7:00 am - start

Pre-run briefing and raffle: 15 minutes prior to start 

Marathon/50K Start: 8.00 am (no early start offered)

Half-Marathon: 9.00 am

12K Start: 9.30am

Course closure: 5.00 pm



Course Map

View the course map.


The Half Marathon starts off with the blue lollipop loop to the first aid station at the top of Squak mountain. Then it follows the green loop counter-clockwise back to the aid station, and finishes up with the purple route back to the start/finish. The 50K runners will then repeat the 13.1 mile course, but will do the green loop twice the second time around. Elevation wise, the 12K course has 2,400 feet of gain, the half-marathon course has 3,650 feet of gain, and the 50K course has 8,300 feet of gain.


To see a profile of the course, check out GPS data from Kevin Crossman, Jeff Web and Simeon Ashworth.


12K Course: Blue, Purple

13.1 Mile: Course: Blue, Green, Purple

26.2 Mile: Blue, Green, Purple, Blue, Green, Purple

50K Course: Blue, Green, Purple, Blue, Green twice, Purple.


Read about how we keep our races green here.


We are dedicated to the responsible enjoyment and active stewardship of the outdoors, and we encourage you to "leave no trace behind" by taking all trash with you. The park rangers always appreciate it when racers follow the marked course and keep the trails clean, and they are much more likely to grant permission for us to put on races at the same location if the trails are kept in good condition.


The trails will be open to other users during the event, hikers and, on the first small lollipop loop, equestrians as well. Please be courteous, you will likely not encounter more than a few. Where the trails are narrow, please let other participants pass you if they want to get by. It is a passing runner's job to tell the person in front that they wish to pass.


For refunds/cancellations please see our policy.


Follow the race LIVE on Webscorer! Photos and results from trail runs previously held can be found on the photos page and results page respectively.


Produced by 4th Dimension Racing