The Stone has dropped, cleared and stabilized. The last two days have been red hot (fishing and temperature)! Fish are looking for hoppers and stoneflies on the surface. So far, this is looking like a banner hopper year. There are also several kinds of mayflies around. The Yeti Hopper, Chubbies in peach or purple, and the Yellowstoner in peach are working well.
The Stillwater is also fishing well on hoppers. Use the smaller sizes as the naturals are not as well developed as they are on the Stone right now. Try a size 12 parahopper. Caddis are everywhere and some fish are rising to them. Tan elk hair in size 16 will work.