The Allegheny is a good place to go for muskies with a fly rod. It has a good population of fish. They can't get away from you deep or offshore like in a lake so much, the moving water makes the figure-8 not quite as necessary. And the population is a good size to eat flies (#'s of 30-40 inchers) I don't know where you are, but if you and a buddie can get up here, the 2 of you can have some fun taking turns running the boat and casting. Big streamers work well in gold/black, 'natural' or 'shad' colorations, and gold/green. The water is pretty clear usually.
Syl