It is located on a rounded ridge with ground sloping away on all sides and surrounded by mature woodland within Coolavin Demesne of the McDermott family. It is well preserved but considerable re building was done in the 19th Century. It is also an exceptional example of the cashel class and can be usefully compared to the larger cashels at Staigue, County Kerry and Grianan, County Donegal.
Enclosed by a massive stone wall it is 26m in diameter. The wall is constructed with large bolders at the base and progressively smaller slabs towards the top. There are a series of sloping and stepped ramps leading to wall walks, which allow access to the ramparts. The walls are 4.3 metres thick and 2 m high, the entrance is a plain 1.8 metre wide passage.