Enclosure, Milltown, Co. Limerick
Co. Limerick |
Enclosures
A field in County Limerick holds the outline of something ancient, and yet you would never know it standing there.
The ground is low-lying and waterlogged, cut through with land drains and watercourses, the kind of wet pasture that discourages close inspection. Nothing on the Ordnance Survey historic maps marks the spot. The enclosure exists, as far as the documentary record is concerned, only from the air.
The monument came to light during the Bruff aerial photographic survey of 1986, when it appeared as a trapezoidal cropmark, the reference logged as Bruff 285: AP 4/3632. Cropmarks form when buried features affect the growth of surface vegetation, with ditches and fills producing subtly different colours or heights of crop visible only under the right conditions of drought or low sun. Subsequent aerial imagery confirmed and refined the picture: orthophotos taken between 2005 and 2012 by Ordnance Survey Ireland, a Digital Globe orthoimage from 2011 to 2013, and a Google Earth image captured on 25 March 2017 all show the same roughly rectangular form, measuring approximately 29 metres east-northeast to west-southwest and 22 metres north-northwest to south-southeast. The site sits 90 metres northeast of a townland boundary with Kildromin, which also doubles as a parish boundary with Kilteely. Within the northwest quadrant of the enclosure, a ring-barrow has been recorded separately; a ring-barrow is a low circular burial mound surrounded by a ditch or bank, a form associated broadly with prehistoric funerary practice. The record was compiled by Alison McQueen and Vera Rahilly and uploaded to the national monuments database in October 2020.
There is nothing to see at ground level, which is partly what makes this site interesting as a category of monument. The enclosure is invisible to a walker crossing the field; it survives only as a pattern in soil chemistry and crop growth, readable from several hundred feet up under particular atmospheric conditions. The surrounding land remains agricultural, and access would require landowner permission. For those curious about aerial archaeology in the Irish midlands and lowland Limerick, the Bruff survey images and the various orthophotos referenced in the record are the most direct way to encounter what is there, offering a view of a landscape that the ground itself quietly refuses to give up.
