The site consists of a partially natural, flat-topped earthen mound measuring approximately 14.5 metres north to south and 10.6 metres east to west. This mound, which once supported a wooden castle structure, sits within an egg-shaped enclosure roughly 40 metres long and 28 metres wide, defined by a defensive ditch or fosse. Though time and weather have taken their toll, traces of an outer defensive bank can still be spotted on the south-southwest side of the site.

The location was carefully chosen by its Norman builders, positioned to overlook bogland and a stream to the south; a strategic advantage for both defence and controlling the surrounding landscape. Motte and bailey castles like this one were quick to construct and served as strongholds during the Norman colonisation of Ireland in the 12th and 13th centuries. The motte, or raised mound, would have been topped with a wooden tower or keep, whilst the bailey, the enclosed courtyard area, would have contained additional buildings for garrison troops, storage, and daily castle life.

Today, the castle exists only as earthworks, its wooden structures long since vanished. The site was first documented in detail by Neary in 1914 and later included in the Archaeological Inventory of County Galway. While it may appear as little more than a peculiar hill to the casual observer, this poorly preserved monument represents an important piece of Galway’s medieval heritage, marking where Norman lords once attempted to impose their authority over the Gaelic Irish landscape.