On a gentle rise above the low-lying grasslands of Aghlisk in north County Galway, a ringfort sits in a state of near-total erasure. What was once a substantial enclosed settlement is now little more than a faint arc in the ground, with no visible surface trace surviving across a wide stretch of its northern side.

Ringforts, or raths, were the dominant form of rural settlement in early medieval Ireland, typically built between roughly the fifth and twelfth centuries. They consisted of a roughly circular area enclosed by one or more earthen banks, sometimes reinforced with timber or stone, and were home to farming families of varying social standing. The example at Aghlisk was originally a subcircular enclosure measuring approximately 53 metres north to south and 47.4 metres east to west, making it a fairly substantial example. What remains is defined only by a degraded scarp, the slumped remnant of an original earthen bank, and an external fosse, the shallow depression of what was once a surrounding ditch. From the north-north-west, through the north, and around to the east, even these faint indicators have vanished entirely into the pasture.