This run undergoes a dramatic character change over the runnable levels. Over 2000, it's clearly in the class IV range, with some great waves, a few somewhat hidden holes, and it's very continuous. We did laps in ~ 45 minutes from the putin to the camp at 2200 => great fun! Go there:--- John Gross, 2014.
See _Colorado Rivers and Creeks II_, by Banks and Eckardt
See also
Avalanche Creek to BRB Campground (Class III),
Penny Hot Springs to Avalanche Creek (Class IV+),
Redstone to Penny Hot Springs (Class V+),
above Beaver Lake (Class V+), and
North Fork Crystal (Class V+).