Gifford Pinchot National Forest · Washington

Big Hollow

3.0 mi of trail, end to end · native material surface · trail No. 158 · trail class 3 · typical grade 12-20% · tread 18-24 inches wide

Trailhead Trailhead: Big Hollow Drive there

Trailhead: Big Hollow the Forest Service's write-up

Provides access to: Big Hollow Trail #158 which ends at Trapper Creek Wilderness boundary where it intersects with Observation Trail #132 .

Parking lot has a 5 vehicle capacity.

Restrictions <a href="http://www.fs.usda.gov/detail/giffordpinchot/?cid=STELPRDB5137394">Wilderness Regulations</a>&nbsp;apply&nbsp;within Trapper Creek Wilderness.&nbsp;&nbsp;

This trailhead on fs.usda.gov

Trailhead: Siouxon the Forest Service's write-up

Fee: No fee is required for this site.

Alert : This trailhead accesses trails within the Big Hollow Fire (2020) burned area. Hikers travel at their own risk. Please review safety tips for burned areas . Forest Road 5701 is barricaded and blocked 3.0 miles away from the original trailhead due to wildfire damage. Hikers may access the Siouxon Trail #130 starting from the Upper Siouxon Trailhead (Huffman Peak Trailhead).

Provides access to : Siouxon Trail #130 which links up with Huffman Peak #129 , Horseshoe Ridge Trail # 140 , Chinook Creek Trail #130A and Wildcat Trail # 156 .

It also provides access for fishing on Siouxon Creek.

This trailhead on fs.usda.gov

All 365 trails in Gifford Pinchot National ForestFind 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.