The site overlooks bogland stretching from the southeast to the north, occupying a strategic position along the townland boundary. First documented in the Ordnance Survey Letters of 1927, it was described as a castle whose site remained traceable, and the 1838 OS six-inch map marked it as an almost square enclosure measuring roughly nine metres northwest to southeast and eight metres northeast to southwest.

Today, visitors to the site will find an oval-shaped area approximately 28 metres across from east to west, its surface rough and uneven with numerous hollows and boulder-like stones strewn throughout. The most prominent feature is a low, irregular mound in the southwestern portion of the site, with a flattish summit spanning about nine metres in diameter. Archaeological surveys suggest this mound likely marks the spot where the castle itself once stood, though time and the elements have reduced the structure to little more than earthworks and rubble.

The site was formally documented by the Galway Archaeological Survey at University College Galway and uploaded to archaeological records in October 2021. While the castle’s history remains largely unrecorded, its position overlooking the boglands suggests it may have served as a defensive structure or local stronghold, watching over the boundary between the two Cloonoo townlands. For those interested in Ireland’s medieval past, the site offers a glimpse into the network of smaller fortifications that once dotted the countryside, many of which have left only the faintest traces in the landscape.