Moated site, Porterstown, Co. Westmeath
The moated site at Porterstown in County Westmeath sits on an east-facing slope amidst gently rolling pastureland.
Moated site, Porterstown, Co. Westmeath
This medieval earthwork takes the form of a long rectangle, measuring roughly 45 metres from northeast to southwest and 23.5 metres from northwest to southeast. A substantial earthen bank encloses the site, standing steep and imposing on most sides, though it’s been reduced to little more than a scarp along parts of the northwestern edge. The bank is accompanied by a wide external fosse, or defensive ditch, which remains particularly well-preserved along the northwest and northeast sides, though time and agricultural activity have taken their toll elsewhere.
The monument has seen better days, with several modern intrusions disrupting its original form. A field fence cuts through where the fosse once ran along the northeast side, whilst the southeastern portion shows considerable disturbance, including a large modern gap and extensive infilling of the ditch. The southwest corner features another sizeable breach, and there’s evidence of quarrying just outside the western corner. Despite these alterations, the site’s defensive character remains clear. The original entrance point has been lost to time, making it difficult to determine how medieval inhabitants would have accessed the enclosure. Inside, the ground slopes gently towards the east-northeast, and a small circular mound sits in the eastern corner, though this appears to be a much later addition.
The site caught archaeological attention when it appeared on the 1913 Ordnance Survey map, and it continues to intrigue researchers today. In 1970, archaeologist Lucas reported the discovery of a blue glass bead in the topsoil about 20 feet from the monument; a small but tantalising hint at the people who once lived or worked here. Modern aerial photography shows the earthwork clearly defined by its tree-lined banks, making it a distinctive feature in the Westmeath landscape. The Archaeological Survey of Ireland has documented the site thoroughly, including detailed profile drawings that help us understand its original construction and current state of preservation.