This one in Mitchelstowndown North, County Limerick, announces itself with almost nothing at all. There is no visible mound, no earthen bank, no trace of anything on the surface of the reclaimed pasture where it is thought to lie. What survives, if survival is even the right word, is a faint partial cropmark, captured on aerial photographs taken on 3 November 1984, suggesting the ghost outline of what may once have been a ringfort, levelled so thoroughly that the land above it gives almost no sign of what lies beneath.

The site was identified during aerial survey work carried out for the Bórd Gáis Éireann Curraleigh West to Limerick gas pipeline, recorded on Strip Map 4 as Site 4/14, at a scale of 1:5000. A ringfort, to give the uninitiated some context, was a circular enclosed settlement common throughout early medieval Ireland, typically defined by one or more earthen banks and ditches. Thousands survive across the country in various states of preservation, but many more have been ploughed or levelled out of existence, leaving only the subtle differential growth of crops above disturbed soil to hint at what once stood there. The cropmark here was visible from the south-west, west, and north in the 1984 photographs, but later examination of Digital Globe and Google Earth orthoimages showed no surface remains whatsoever. The site does not appear on Ordnance Survey Ireland historic mapping either. A possible barrow, a type of burial mound, lies approximately 80 metres to the south-west, and the site itself sits around 65 metres south of the townland boundary with Knocklong East. The record was compiled by Fiona Rooney and uploaded to the national monuments database in July 2021.

For anyone determined to visit the general area, Mitchelstowndown North is a quiet stretch of south County Limerick farmland, and the landscape here is working agricultural ground with no public access to the specific field in question. There is, practically speaking, nothing to see on the ground. The interest lies entirely in the idea of the place: that beneath ordinary pasture, the faint circular memory of an early medieval settlement may persist in the soil, legible only from the air, and only then under the right conditions of crop growth and light. The 1984 aerial photographs remain the primary evidence, and the site's status is recorded as a potential rather than confirmed monument.