For the early summer while the water is up with spring runoff, add a #2 black marabou streamer to your fly box. Use it until the water drops to its summer low, then use a #6 Spade. Add a Muddler Minnow and stone fly nymph for difficult fish. And a Grease Liner or other waking fly for late summer and fall if you want to take them on the surface.

Sg