Arapaho and Roosevelt National Forests · Colorado

South Boulder Creek

4.5 mi of trail, end to end · native material surface · trail No. 900 · trail class 2 · typical grade 12-20% · tread 18-24 inches wide · hiking, horse · seasonal: hiking 06/01-10/31

Begins at the forest's mile 0, 39.9025, -105.6452 - no trailhead mapped Drive to where the trail begins

East Portal Trailhead the Forest Service's write-up

The East Portal restroom is temporarily closed until further notice.

Provides access to South Boulder Creek Trail, Forest Lakes Trail, Crater Lakes Trail, Ute Trail and the Continental Divide Trail inside the James Peak Wilderness .

View an area map here.

Restrictions James Peak Wilderness restrictions apply: <ul><li><strong>Motorized equipment&nbsp;and mechanized&nbsp;transportation are prohibited. </strong></li><li><strong>Pets must be on a hand-held leash at all times. </strong></li><li><strong>Campfires are&nbsp;prohibited year round.</strong></li><li><strong>Campsites must be at least 100 feet&nbsp;away from water and trail.</strong></li><li><strong>Group size is limited to 12 (people and livestock combined).</strong></li><li><strong>Processed weed-free feed is required for stock.</strong></li></ul>Fishing and hunting: permitted in accordance with regulations established by Colorado Parks &amp; Wildlife.

This trailhead on fs.usda.gov

Every trail in Arapaho and Roosevelt National Forests

All 460 trails in Arapaho and Roosevelt National ForestsFind a trailForest on fs.usda.gov

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.