What gives it away is a cropmark, the phenomenon by which buried ditches and banks cause the vegetation above them to grow differently, producing faint colour and height variations in a ripening crop that only become apparent from altitude. It is one of the quieter ways the past refuses to stay entirely buried.

The enclosure was first identified on an aerial photograph taken on 16 July 1967, part of the Cambridge University Collection of Aerial Photography. The image shows a roughly sub-square form, measuring approximately 50 metres north to south, defined by the cropmark trace of a fosse, the term used for a boundary ditch. A second, less clearly defined enclosure appears to adjoin it to the south, with a curving fosse running away to the south-east from its south-eastern angle. The relationship between the two suggests they may have formed part of a larger field system, though the evidence remains tentative. The tillage that once revealed these outlines so clearly is also, in time, what gradually obscures and erodes them.