1.0 mi of trail, end to end · about 40 ft of climbing · 3,211 ft–3,253 ft · native material surface · trail No. 657 · trail class 5 · typical grade 0-5% · tread 36-48 inches wide
TrailheadsLost Lake Butte Trailhead 3,282 ft Drive there · Old Growth Trailhead 3,276 ft Drive there
Old Growth Trailhead the Forest Service's write-up
Lost Lake Campground and Resort is privately managed. Please check with <a class="offsiteicon" href="https://lostlakeresort.org/">Lost Lake Resort</a> for information on day use and camping fees.
The Old Growth Trailhead provides access to the Old Growth Trail, a short, barrier-free trail that travels through old-growth forest near Lost Lake. Old Growth Trail is accessed from Lakeshore Express Trail #658 .
The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.