Event Description

Lost Lake 25K
Bellingham, Washington
Start: Lost Lake Trailhead
Finish: Larrabee State Park Amphitheater

Welcome to the Pacific Northwest’s hidden gem: the Lost Lake 25K — a perfectly crafted point-to-point trail run through the moss-draped forests, ridgelines, and  lake basins of Washington’s first state park.

This one-way loop (no redundancies, no backtracking) starts at the Lost Lake Trailhead, taking runners on a scenic journey through old-growth evergreens and fern-lined singletrack. The course weaves its way south through Larrabee’s rugged terrain, connecting some of the area’s most beautiful trails in a flowy, runnable rhythm.

On clear days, you’ll catch breathtaking views into Canada, over the bay into Bellingham, and across to the snow-capped summit of Mount Baker. Along the way, expect a mix of fast, forested descents, mellow climbs, and technical stretches near lakes and ridgelines.

The journey ends at the Larrabee State Park Amphitheater, where a celebratory finish line, post-race snacks, and mountain vibes await.

Whether you're chasing a PR or just soaking in the sights, this course delivers a little magic in every mile.

Come run the ridges, lakes, and lore of the Chuckanut Mountains. Welcome to Yeti.