Tongass National Forest · Alaska
Petersburg Lake Trail
9.0 mi of trail, end to end · native material surface · trail No. 21534 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide · hiking, bike · seasonal: hiking 05/15-09/15
Lodges
Along the way Petersburg Lake Cabin
Trailheads Petersburg Lake Trailhead Drive there · Petersburg Mountain Trailhead Drive there
Petersburg Lake Trailhead the Forest Service's write-up
The Petersburg Lake and Petersburg Mountain Trailheads are located on Kupreanof Island near the State Dock. The Petersburg Lake Trail heads south along an old roadbed.
This trailhead on fs.usda.gov
Petersburg Mountain Trailhead the Forest Service's write-up
The Petersburg Lake and Petersburg Mountain Trailheads are located on Kupreanof Island near the State Dock. The Petersburg Mountain Trail heads north along an old roadbed.
This trailhead on fs.usda.gov
Every trail in Tongass National Forest
Other trails from the same trailheads
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.
