Sorry not to get this up sooner--searched my memory to recall the (roughly) two-foot boulder that's in the center-right of the dam drop at the power plant in Boulder Canyon--I don't think this was in there last year. As it's running big now, I'm guessing lots of folks will be heading down B-Canyon. Rock was easily avoidable by going far right (the usual move). You don't want to collide with this rock. Scout river left a 100 yards or so upstream if you're unfamiliar with the dam drop.