All that remains of this fort is the oval shaped hedge and bank that surrounds a field. It position in the West Looe valley would have made it difficult to attack being on a steep sided promontry. Originally a small round fort at the north end, another circle was added to fill the current space. Eventually the Giants Hedge was built on the east side and this became the main defensive wall.
During the dark ages it was the site of a hermitage and Chapel for St Nunna, the mother of St David. An unspoilt well that bears her name is just to the north.