Lake · Entiat
Lost Lake
7.9 mi round trip2,045 ft gainModerateDay hike: No permitOvernight: No permit
Get alerts for this hikePermits and reservations
Day hikeNo permit
No permit or reservation.
OvernightNo permit
No permit or reservation. Camp at least 200 ft from lakes and streams.
Outside wilderness and park boundaries, on Forest Service land. Matched from official boundaries and trail managers. Always confirm with the land manager before you go.
About the trail
Distance7.9 miRound trip, out and back
Elevation gain2,045 ftTotal climb, round trip
Lake elevation5,630 ftFrom elevation data
Overview
Lost Lake is a lake reached by a 7.9-mile round trip from Mad River Trailhead - Upper. The route follows Upper Mad River Trail, then Hi Yu Trail to the shore.
Photos from hikers
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What you need
Parking and passes
Forest Service trailhead: display a Northwest Forest Pass or an interagency pass (America the Beautiful).
Buy a Northwest Forest PassGetting there
The hike starts at Mad River Trailhead - Upper. Save directions offline before you leave, since mountain roads often lose cell service.