I have fished the Gunpowder River many times. I live on the Gunpower River. My suggestion would be to fish all the way to the end of the river. Depending on where you are launching. Mariner Point is a good place to lauch. From there you can go to the rigth and fish the Marina, the go towards the end and fish the docks. After that come back out and go back the the lauch ramp turn right and fish the inlet all the way to the back. Hope this helps a little
Jim