There is a big hill at the side of Knockadoo called "Dubh." Long ago two men were hunting on it as it is a great place for game. In the evening a heavy mist fell all round and the two men got lost in the "bottoms" and could not make their way out. At last they saw a light in front of them and they went in its direction. But they never reached it for they were found dead in the morning. The people buried them and built this great mound over them.