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34,045EventsUnited States2026
This week
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9
MAY
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Cougar Mountain Trail Run Series (May)
Saturday, May 9, 2026 · Bellevue, United States
Distances
8.2km
17.4km
Start location
About this race
The 22nd annual Cougar Mountain Trail Run Series offers fern-lined single-track trails through rolling hills, moderate climbs, and short, steep inclines along marshes and wetland habitats. The event is cup-free; bring a refillable water container. Your run supports King County Parks and Native neighbors.