Probably best to hike in to the Bumbee and Mapleslush Branch confluence, only about one mile. The logging road is .9 miles from the Bumbee Creek land bridge if you are heading north. The first 1/2 mile is class II+ and III. In the last mile a few class IV's are thrown in as well as one big class V just before the confluence.
_Lat/longitude coords are approximate, from Google Maps._