Place closure
No recurring date-based closure of Union Creek Trailhead is published. Remote seasonal forest-road access and temporary emergency orders still control access.
Trailhead
Trinity Alps Wilderness, Shasta-Trinity National Forest, California
Union Creek Trailhead begins on Forest Service Trail 09W07; Union Creek provides the mapped approach toward Union Lake and adjacent basins
Use the Forest Service road approach and confirm current condition because winter and storm damage can cut off the upper road.
Seasonal access
No recurring date-based closure of Union Creek Trailhead is published. Remote seasonal forest-road access and temporary emergency orders still control access.
Remote seasonal forest-road access: Use the signed Union Creek Trailhead access in Trinity Alps Wilderness, Shasta-Trinity 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.