Mt. Baker-Snoqualmie National Forest · Washington
Lake Dorothy
4.4 mi of trail, end to end · native material surface · trail No. 1072 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking
Trailhead Dorothy Lake Trailhead Drive there
Dorothy Lake Trailhead the Forest Service's write-up
$5/vehicle/day
Provides access to: Dorothy Lake Trail 1072 within the Alpine Lakes Wilderness . There is a washout 4 miles from the trailhead.
Restrictions <a href="http://www.fs.usda.gov/detail/mbs/?cid=FSBDEV7_001639">Wilderness regulations</a> apply within Alpine Lakes Wilderness. <ul><li>Hikers only.</li><li>Party size is limited to 12 people.</li><li>Dogs must be on a leash.</li><li>Camp in established campsites.</li><li>Campfires prohibited at Dorothy Lake.</li><li>Stay out of areas closed for restoration. </li></ul>
This trailhead on fs.usda.gov
Every trail in Mt. Baker-Snoqualmie National Forest
About this trail's facts
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.