The big stoneflies have been making an appearance on the Henry’s Fork. They are in full swing below the Ashton Dam. They have also moved up to Warm River but are not hatching in large numbers on the Warm River to Ashton stretch. Fish rising on these big bugs is really day to day. I would fish the dry and float a stonefly nymph as a dropper. The high water has pushed the fish towards the banks look for the fish to holding there. If the fish are not actively feeding on the surface try throwing a golden stone or a chernobyl ant. Mixing up the presentation will sometimes trigger a fish to rise.