The stuff shown in the video is from the lower canyon section, which harbors the best class IV on the run. The upper canyon has a short section of IV and the rest of it is II-III boogie water. It's a great run, but it's not what you see in the video for 20 miles. I'll defer the peak and how long it'll run to someone who knows it better as I haven't been here for a season yet - sorry.
Originally Posted by mjpowhound
Man, that looks fun. Is it like that for all 20 miles? Any guesses on whether it has peaked and how long it will run?