No earthwork survives, no bank or ditch breaks the surface, and a person walking across the field would have no sense of standing inside anything at all. Yet the outline of a roughly oval enclosure, measuring approximately 32 metres northeast to southwest and 35 metres northwest to southeast, is clearly legible from above as a cropmark, the faint differential in how vegetation grows betraying what lies beneath.

An enclosure of this type would once have defined a bounded space, most likely a farmstead or settlement of early medieval date, enclosed by an earthen bank or low wall. It was recorded on the first edition Ordnance Survey six-inch map of 1840, which suggests it still had some physical presence in the landscape at that point, but by the time the revised edition was surveyed between 1904 and 1905, it had been levelled, presumably through agricultural improvement. The site effectively disappeared from the record for much of the twentieth century. It was Jean-Charles Caillère who identified and reported the cropmark on satellite imagery captured in 2021, bringing the enclosure back into view after more than a century of invisibility. Two further enclosures, also visible only as cropmarks, lie roughly 180 metres and 240 metres to the southeast, hinting that this part of Derravoher was once a more densely settled landscape than its present smooth fields suggest.