This one announces itself only from the air. On a hilltop in Kilgarriff, County Limerick, what was once a ringfort has been reduced so thoroughly by centuries of farming and land reclamation that it is now visible mainly as a circular cropmark, the kind of ghostly outline that only becomes legible when you look straight down at it from a satellite image. A ringfort, or rath, was typically a circular enclosure defined by one or more earthen banks and ditches, used as a farmstead and place of shelter during the early medieval period in Ireland. Here, that enclosure has been largely swallowed by the surrounding pasture, leaving a trace that belongs more to aerial archaeology than to landscape walking.

The site sits in reclaimed pasture about 50 metres east of the summit of a hill that rises to 579 feet, or 176 metres. It was recorded as a circular enclosure on the Ordnance Survey Ireland six-inch map of 1840, a detail that confirms it was still a recognisable feature of the landscape at that point. By the time the 25-inch edition was produced in 1897, the record had shifted slightly, describing a raised circular-shaped area of approximately 24 metres in diameter, defined by a scarp, a low step or edge in the ground surface where the earthwork had begun to erode. A second possible ringfort lies about 95 metres to the south-west, recorded separately, which suggests this part of the hill may have supported more than one early settlement over time. The cropmark evidence comes from Digital Globe and Google Earth orthoimages taken between 2011 and 2013, compiled as part of a survey by Martin Fitzpatrick and uploaded to the record in November 2021.

For anyone visiting, the site is not an obvious destination in the conventional sense. There are no interpretive panels, no maintained paths leading to it, and the earthwork itself is, by most accounts, largely levelled. Access would involve crossing agricultural land, so permission from the landowner would be necessary. The best way to appreciate what remains is arguably to consult the Google Earth orthoimages referenced in the site record, where the circular cropmark can be seen clearly against the surrounding field patterns. If you do walk the hill, it is worth knowing that the slight rise in the pasture and the faint scarp are more perceptible in low, raking light, particularly in the early morning or late afternoon in autumn or winter, when shadows are long and shallow earthworks cast more of a shadow than they would in summer.