Bridger-Teton National Forest · Wyoming
Trailhead Marten Creek Trailhead Drive there
The Marten Creek trail begins a quarter mile up the Marten Creek Road and connects to the Wyoming Range National Recreation Trail, just west of the divide from Roaring Forks Lake on the Big Piney District. With 2240' elevation gain, this route climbs fast.
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.