After a long section of quickwater and class I the river approaches Alderbrook rapids about a half-mile below the powerline crossing. Portaging is easiest from river right, which is also the roadside. The rapid is series of large boulders and occasional eddies that define a consistent zig-zag through-line driving mainly river-center. There are some powerful pour-overs that will set your boat on a trajectory into the next boulder, so work is required to maintain the zig-zag pattern to the end of the rapid.