I live in Maryland not far from you. I fish both those great rivers. Great kayak and wading fishing. Last year by Harpers Ferry some friends of mine talked to a guy who had caaught 2 large Walleye. So I would say try around there. I am usally tearing up Smallies.
"it doesn't matter if the horse is blind....Just load the cart anyway!!!" John Madden NFL Hall Of Fame) Fred Jefferson,MD (NAFC LM) (NAHC TLM)