It measures roughly 30 metres across, slopes gently from south to north, and is encircled by a slight fosse, that is, a shallow surrounding ditch. When a surveyor first recorded it in 1943, it did not even appear on the Ordnance Survey map. What makes it quietly compelling is not its dimensions but what those dimensions, combined with its setting, might imply about the working life of a medieval and early modern landscape.

The monument was described by O'Kelly in 1942 to 1943 as a very low circular platform on poorly drained grassland, sitting some 30 metres from a stream to the north-east and 140 metres from the site of Ballinard Castle to the south-west. The combination of wet, partially reclaimed land, proximity to running water, and a neighbouring castle site has led researchers to suggest this could be the remains of a watermill, a mill powered by a diverted watercourse rather than wind, of the kind mentioned in the Civil Survey of 1654 to 1656. That mid-seventeenth-century survey recorded a watermill in this townland, and the spatial logic here is suggestive, if not conclusive. A linear earthwork visible in an adjoining field to the south on aerial photographs taken between 2005 and 2012 may be connected, possibly representing a former millrace or field boundary associated with the same complex.

The earthwork sits on private agricultural land and is not a signposted or publicly managed site. Its outline, invisible at eye level in a green field, becomes legible from above; aerial photographs taken by the Archaeological Survey of Ireland in January 2003 show it clearly, and it appears on Digital Globe satellite imagery as well. Anyone with a serious interest in visiting would need landowner permission. The surrounding terrain is poorly drained, and the ground remains wet for much of the year, so appropriate footwear matters. The castle site to the south-west offers a companion point of reference for anyone trying to understand how these features once related to one another on the ground.