The only way to see it is from above, where the soil and the crops growing through it betray the outline of a structure that has long since vanished from the surface. What remains is a crop mark, a phenomenon that occurs when buried features such as ditches or walls affect the moisture and nutrient content of the soil above them, causing the vegetation to grow at a slightly different rate or to a slightly different colour. In aerial photographs, these variations read as shadows or contrasts in the field, tracing shapes that are otherwise invisible at ground level.

The enclosure at Ringwood appears in aerial photography as a sub-circular form, meaning roughly, though not perfectly, round. That shape is significant. Sub-circular enclosures of this kind are commonly associated with early medieval settlement in Ireland, the same broad tradition that produced the ringfort, of which tens of thousands once existed across the country. A ringfort, sometimes called a rath or lios, was typically a farmstead enclosed by one or more earthen banks and ditches, built to define a domestic space and perhaps to protect livestock. Whether the Ringwood example belongs to that tradition is not confirmed by the available record, but the form is suggestive. The site is noted in the Sites and Monuments Record and was brought to wider attention through the work of Tom Condit, who communicated details of the find in March 2015. The record was compiled by Paul Walsh and uploaded the same month, drawing on a Google Maps aerial image accessed on 12 March 2015.

There is nothing to see at ground level, and access to the field itself would require landowner permission. The value of a site like this one is less in the visiting and more in the knowing, in understanding that the Irish countryside holds countless features of this kind, legible only to those who know how to look and from what angle. If aerial photography, whether through Google Maps or dedicated sources such as the Irish Air Corps archive, is new to you as a way of reading landscape, sites like Ringwood make a useful introduction to the practice. The contrast between the blankness of the field on the ground and the clarity of the outline from above is, in its quiet way, quite striking.