Fishing for Yakima trout seems to be good now... I don't know the name of the insect but little green flies was hatching from 7pm till dusk and elk hair caddis of similar size work good... I was with two beginners and one of them hooked his first fat rainbow. He was so lucky! I caught one very bright 14" cutthroat and couple of good-sized rainbows, beside countless strikes of smolts. The only one negative thing was consistent strong wind along the canyon.