Siouxan Trail #130 Professional Review and Guide
"The trail has a nice hard-packed surface, with some roots, rocks, and water crossings to keep your attention. The trail becomes overgrown, though, after a slippery, treacherous creek crossing at 6.2 miles, so that is the recommended turn-around point. The described route is a challenging ride through old-growth and second-growth forest, ferns, mosses, waterfalls, and beautiful pools; some of the water crossings demand dismounts.
This route is a good choice for a hot summer day because the deep tree canopy keeps the heat at bay. Because the trees block the sun, though, don't start too late in the day without alight; the tree canopy will rob you of some late-afternoon sunlight as the sun sets over the ridge to the west. A luscious ride in a lush forest; the deep tree canopy makes for great hot-weather riding. The mostly roller-coaster creek trail ties into a network of ridge trails."