Place closure
No recurring date-based closure of Middle Boulder Trailhead is published. Remote seasonal forest-road access and temporary emergency orders still control access.
Trailhead
Trinity Alps Wilderness, Klamath National Forest, California
Middle Boulder Trailhead begins on Forest Service Trail 5577 / 08W08; the trail reaches West Boulder Lake and the Boulder Creek Lakes basin
Use the signed Scott River-side approach; the Klamath guide identifies a rough mountain road and seasonal creek conditions.
Seasonal access
No recurring date-based closure of Middle Boulder Trailhead is published. Remote seasonal forest-road access and temporary emergency orders still control access.
Remote seasonal forest-road access: Use the signed Middle Boulder Trailhead access in Trinity Alps Wilderness, Klamath National Forest, California. The seven supported entries use different paved and unpaved Forest Service approaches. Verify the signed trailhead, road surface, snow, washouts, fire closures, and parking status before leaving the highway. Trinity Alps Wilderness has no published recurring closure season, but high-country snow can persist into summer and remote forest roads can be blocked by snow, washouts, wildfire, or storm damage.
Check Shasta-Trinity alerts and the exact signed trailhead road immediately before travel; a self-issued wilderness permit does not guarantee road or trail access.