First recorded on the 1840 Ordnance Survey map as a rectangular area defined by a scarp, this medieval earthwork has evolved through the centuries into a fascinating archaeological puzzle. The site appears on the 1897 map as an area enclosed by a bank, and modern surveys reveal its true square shape, measuring 48 metres on each side.

The enclosure consists of an impressive bank, nearly five metres wide and rising 1.4 metres on its exterior side, accompanied by a substantial fosse or defensive ditch that’s over six metres wide and more than a metre deep. These defensive features have been incorporated into later field boundaries along the northern, eastern and southern sides. Two possible entrances break this formidable perimeter; at the western side, stone wall footings suggest the remains of a gatehouse straddling the scarped edge, whilst the eastern entrance is marked by two mounds flanking a gap nearly six metres wide, with a gentle scarp leading into the interior.

Inside the enclosure, the level interior tells a story of continuous use and modification. The northern section contains three raised platforms, created by shallow linear drains that divide the space into areas measuring between 8 and 20 metres across. An east-west scarp bisects the interior, separating these platforms from the southern half, where irregular undulations hint at buried structures and a circular patch of flagstones, 10 metres in diameter, provides tantalising evidence of past construction. The northeast and southwest corners rise noticeably above the rest of the interior, adding to the complex topography of this well-preserved medieval site.