Dun Dealgan Motte, Castletown

Map Reference: J029083 (3029, 3083)



This large circular motte is about 10m high and 43m diameter at the top. It is surrounded by a wide ditch and an external bank. To the NW is a small bailey. On top of the motte is the ruin of a late-18th century castellated house known as 'Byrne's Folly'. It is surrounded by a peripheral bank which appears to be of the same date. Set into the south side of the motte is a Z-shaped souterrain. The total length is about 17m but it is not now accessible.