The ringfort at Adamstown has been levelled, its earthen banks absorbed long ago into reclaimed grassland, yet it has not entirely disappeared. Aerial photography and satellite imagery have revealed what the eye on the ground cannot quite resolve: a double-ditched enclosure, the inner circuit measuring around 38 metres across and the outer fosse running roughly 10 metres beyond it. That combination of an inner enclosure and an outer ditch, known in Irish archaeology as a bivallate ringfort, suggests this was once a settlement of some local significance. Ringforts, the most common monument type in the Irish countryside, were typically the enclosed farmsteads of early medieval families, their earthen or stone banks providing a boundary as much social as defensive.

The site was substantial enough to register clearly on the first Ordnance Survey six-inch map of 1839, where it appears as a large circular enclosure, and it was recorded again in the 1900 revision. By the time the 25-inch OS map was drawn, surveyors estimated an overall diameter of approximately 56 metres, taking in the outer earthworks. That the monument survived in the cartographic record even as it vanished from the landscape says something about how thoroughly agricultural improvement can erase these features while the underlying archaeology, compressed beneath the soil, endures. Aerial photographs taken in March 2001 and October 2003 captured the cropmark or soilmark signatures that betray its presence, and satellite imagery viewed as recently as 2020 confirmed the same doubled ring still readable from altitude, even if invisible to someone walking the field.