What gives it away, to an attentive eye, is the slight rise of a bank around the perimeter and the shallow depression of a fosse, the external ditch that once reinforced it, running just outside. Enclosures of this kind, broadly circular or subcircular earthworks defined by a bank and ditch, appear across Ireland in considerable numbers, and they served many purposes over many centuries: settlement, animal enclosure, ritual use. This one, near Lowville in north Galway, measures roughly 19.5 metres east to west and 18 metres north to south, making it a modest but coherent example of the form.

The site sits approximately 50 metres west of the Ahascragh River, on ground flat enough that the earthwork's profile would have been visible from some distance when it was intact. It is not fully intact now. Along the south-south-west to west arc of the enclosure, a trackway has cut through the bank and fosse, interrupting what would otherwise be a near-complete circuit. This kind of disturbance is common with earthworks that have survived into the modern agricultural landscape, where field paths and farm tracks gradually wear away features that had endured for centuries. The detail was recorded in the Archaeological Inventory of County Galway, compiled by Olive Alcock, Kathy de hÓra, and Paul Gosling and published in 1999.