Course Map: Grand Ridge Trail Half Marathon

Runners in the half marathon — like those in the full marathon, 5-Mile and 50K runs — follow an out-and-back route that starts and finishes just off Exit 20 from Interstate 90, roughly 20 minutes east of downtown Seattle, and just east of the Issaquah Highlands residential development. Entrants are asked to park along the road just off the exit, where the starting line lies just a short walk from the parking lot.

(MORE: Grand Ridge Trail Half Marathon event details)

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Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed. If you see an error above, email us here.

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