This large oval mound, stretching approximately 60 metres from east to west, represents a classic example of a motte; a type of fortification introduced to Ireland by the Anglo-Normans in the late 12th century. The structure rises dramatically from the surrounding low-lying landscape, with a platform at its western end measuring roughly 28 metres long, 6 metres wide, and standing 5 metres high. At its summit, visitors can make out an irregularly shaped platform spanning about 15 metres east to west and 9 metres north to south, reaching a height of 7 metres.

The motte is encircled by a substantial U-shaped fosse, or defensive ditch, approximately 9.5 metres wide, which would have served as the primary line of defence against attackers. The entrance to this fortification can be found at the north-northwest side, allowing controlled access to what would have been an important strategic position. The proximity of a castle to the west (recorded as LA035-052 in archaeological surveys) suggests this area held considerable military and administrative significance during the medieval period.

Archaeological surveys conducted for the 1995 Archaeological Inventory of County Laois documented these features in detail, though ongoing research continues to shed new light on the site’s history and purpose. The motte’s commanding position at the river junction would have provided excellent views of the surrounding countryside, making it an ideal location for controlling movement along these waterways and asserting Norman authority over the local population.