Signs at the ends of this detour, and the parking at the Nel Rogers Trailhead explain that for the moment a segment of the Wilson River Wagon Road Trail
is closed from 5am to 2pm every day for logging purposes. This is the supplied detour.
It's a gravel service road. Stay to the right, watch out for trucks, and typically go straight. The singletrack is easy to spot, marked trailheads on both sides of the road.