Hikes›United States›Washington›Olympic National Park›Boulder Lake from Happy Lake Ridge TrailheadBoulder Lake from Happy Lake Ridge TrailheadDay hike · 27 km · ↑ 1,706 mIn Olympic National Park, WashingtonTrip reports and guidesBoulder Lakehike734.com · trail guideMore about Boulder Lake (4)June 202014erart.com · Jun 2020 · trip reportKettle Ponds Hikemountain-living.com · trip reportEast Boulder Lakeoregonhiking.com · trail guideSeattle, WA: Boulder Lakebackpacker.com · trail guide