The world of trout is constantly changing and moving. River levels rise and fall. Trout move from the bottom of the water to the surface, feeding on unknown insects. The angler is left with the perennial questions of “What are they biting on?” & “What flies should I use?” The domain of trout is not as mysterious as we’ve been led to believe. Instead, it is ruled by patterns and cycles, which have been recorded by science. Blindly picking flies and frustrated days on the water are now a thing of the past. Get ready to stop fishing harder and start fishing smarter!