Big stoneflies are flying in Box Canyon and fish and anglers are responding whether wading or boating. In a few days these big bugs will be doing the same around Coffeepot where fishing conditions will be less crowded. Hatch on the lower river is diminishing, but golden stone are coming on. Give currently filled up or filling up fish several days, and they will be looking for those big bugs again. For now, afternoon caddis activity is taking over for best dry fly fishing.