This earthwork, measuring 34 metres east to west and 25.5 metres north to south, consists of two earthen banks with a water-filled ditch, or fosse, running between them. The site remains in fair condition despite centuries of weathering, with a shallow fosse at the northwest corner that appears to have served as a leat, channelling water westward through a breach in the outer bank.

The southeast corner tells a story of evolving defensive needs, where a later tower house was built directly on top of the original enclosing elements. Along the inner bank, the remains of a collapsed stone wall likely represent a bawn wall; a fortified enclosure that would have provided additional protection for livestock and inhabitants. Archaeological survey work has identified what appears to be a house site in the northeast corner of the interior, whilst a low bank running north to south from the southern inner banks suggests the space was once divided internally for different uses.

Later modifications show how the site continued to evolve over time. A small rectangular field, enclosed by stone walls that follow the western and northern sides of the inner bank, has been planted with trees, adding a pastoral element to this historic defensive structure. The monument’s significance is recognised through its preservation order, issued in 1991 under the National Monuments Acts, ensuring this piece of Cahernamuck West’s medieval heritage remains protected for future generations to study and appreciate.