Before I began fly fishing, I fished the park for a long time with rooster tails and caught fish in the East, Middle and West Prongs of Little River and Abrams Creek. I generally had my best success with black rooster tails, sometimes with a little flash in them.
Just to reinforce what buckeyetrouter said, be sure and stay with the single hook. I have asked by a ranger to show my lures. The single hook variety is a little harder to find but they usually have a supply at Little River Outfitters.
His eye is on the sparrow and I know He watches me.