On a hilltop in Ballyengland, County Limerick, a ringfort that once formed a clearly defined circular enclosure has been levelled by centuries of agricultural use, leaving behind only the faintest suggestion of its former shape pressed into the grass.

Ringforts, sometimes called raths, are among the most common early medieval monument types in Ireland. They were typically enclosed farmsteads, defined by one or more banks and ditches of earth or stone, and used for settlement and livestock management roughly between the fifth and twelfth centuries. The Ballyengland example was recorded on the Ordnance Survey six-inch map of 1841 as an embanked circular enclosure with a diameter of approximately twenty metres, modest even by the standards of the type. By the time Denis Power compiled the record in 2011, the monument had been largely levelled. What survived was a low earthen bank running from the north-east to the east-south-east, with an internal height of around fifteen centimetres and an external height of roughly ten centimetres, and a width of approximately seven metres. In other words, barely a ripple in the field.

The site sits in pasture atop a hill, which at least means the slight irregularity in the ground surface is easier to read when the light is low and raking, particularly in the early morning or late afternoon in autumn and winter when shadows are long and the grass has been grazed short. There are no formal access arrangements noted, and the surrounding land is farmland, so the usual courtesies apply. The section of surviving bank between the north-east and east-south-east is the most legible part of what remains, and knowing in advance that you are looking for something just fifteen centimetres proud of the interior ground level makes all the difference between seeing it and walking straight past.