Classified as a ring barrow, the kind of burial monument typically associated with the Bronze Age, this earthwork near Knockloe House consists of a mound roughly ten metres across, enclosed by a wide shallow fosse, which is essentially a surrounding ditch, with faint traces of an external bank beyond it. On paper, that profile fits the type. In practice, the picture is considerably murkier.

The site is one of five possible barrows clustered together in a single narrow field measuring roughly 59 metres by 110 metres, all of them sitting close to the abandoned ruins of Knockloe House. That proximity, combined with the tight grouping and the relatively good state of preservation, raises questions about whether these earthworks have prehistoric origins at all. The landowner noted that the field was used for ringing horses during the 19th century, a practice in which horses were exercised in circles, which could plausibly account for some of the circular earthwork patterns. One of the five features, visible on aerial photography from 2005, appears on closer inspection to be nothing more than a circular feeding trough. The remaining mounds were also picked out as cropmarks on that photograph, and confirmed as earthworks on a later Digital Globe image from November 2011, but cropmarks alone cannot settle the question of date or function. Archaeologists examining the cluster have acknowledged that the evidence, at least as it currently stands, is ambiguous enough to cast genuine doubt on whether any of these features predate the post-medieval use of the land.