About the only fishing in that area, is the Allegheny River. Not seeing any lakes on the map close by. Also you need to know that the State has a ban on people entering the state, from other states. You should probably check, to make sure, you will be allowed to come into the state.
How far from Coundersport Pa, would you and him be willing to travel, to fish for crappie? I see that the town is about 110 miles east of Erie Pa.