F/V Gulf Ventur was able to hit a stonefly hatch this past week. I had tied up some O2 Air-filled Stoneflies for him to try. He sent me this picture with a little report of their success. One of his friends went back up to try it again. Hopefully, I'll get another report. While this hatch is pretty much over on many of the smaller, local Utah waters, it should be starting on the northern waters of Montana.