Moonrise is the obvious flow joining High on Boulder from the right side of the drainage. Do the same approach that is, drive to the end of the road, park and cross the river to catch the riverside trail/superhighway. Takes about an hour to get to the base. One 50m pitch of WI 3+ gets you to the base of the business, a 40m vertical section of WI 5 if it's fat. If this curtain is lean you will see an amazing grouping of ice mushrooms randomly placed on the vertical wall and obligatory WI 6 climbing. After the curtain, you may continue up a 40 m bulge of WI 3 and then rap the route.