Access, and notes about good spots are far more important than dry specific “swing” or “fly” water. Besides, whose word are you goi to takeaboutnwhat. A,e good fly fishing water. At any rate there are a number of excellent “fishing” map series published that have tons of notes - plenty enough in my opinion to get a good idea where to fly fish, and even swing, like access, location of riffles and bars, and even rating of certain spots. Im sure there are many other like this for different regions regions around njorth America, but two that have some great one in the PNW are below. Any given map for these series is worth. Ore than a stack of guidebooks, IMO.