What makes the site at Castlecore quietly remarkable is the scale and the survival: the ridges, running northeast to southwest, are enclosed within a low earthen bank that traces out a large, irregular field roughly 214 metres from north to south and 226 metres from east to west.

Cultivation ridges of this kind, sometimes called lazy beds, were a widespread method of improving poorly drained ground, particularly associated with intensive potato cultivation in the centuries before the Famine, though the practice has older roots. By mounding the earth into raised strips, farmers created better drainage and deeper workable soil. That the ridges here survive at all, beneath grassland rather than under later ploughing or development, is notable. The enclosing earthen bank adds another layer of interest, suggesting the field was deliberately bounded as a unit of agricultural management. The site came to wider attention through aerial imagery, with its features clearly legible on orthophotos taken between 2011 and 2013, the kind of overhead perspective that reveals what is almost invisible at ground level.