The direct approach is along the eastern section of Howland Hill Road, which is winding, narrow and mostly unpaved. Cars and vans can reach the grove parking area; there is no parking there for RVs or trailers. A second approach starts at Jedediah Smith Campground’s day-use area and follows a path upstream to a seasonal footbridge. Those bridges are usually installed from late June through late September, but river flow sets the dates, so check current conditions before you count on that crossing. Howland Hill Road can also have short storm-repair closures.