A circular enclosure roughly 45 metres across was recorded here, the kind of earthwork that in Ireland typically dates to the early medieval period and served as a farmstead or ringfort, a low bank and ditch enclosing a family's domestic space. Today, nothing of it can be seen. The grass rolls on uninterrupted, and whatever once rose from the soil has been levelled, ploughed, or simply worn away over centuries.

The site's paper existence owes itself to the third edition of the Ordnance Survey six-inch map, published in 1933, which marked the enclosure clearly enough for later researchers to include it in the Archaeological Inventory of County Galway, compiled by Olive Alcock, Kathy de hÓra, and Paul Gosling and published in 1999. That cartographic record is now the only surviving evidence that something was here at all. The OS six-inch series, produced at a scale that captured field boundaries, earthworks, and ruins with considerable care, has preserved the outlines of thousands of features that subsequent decades of agriculture and development have since erased. This enclosure is one of the quieter casualties of that process.

There is nothing to direct a visitor's eye at Castlelambert. The value of the site lies less in what can be experienced on the ground than in what its disappearance suggests, namely how much of Ireland's early landscape has been absorbed back into farmland, leaving only an early twentieth-century map as its memorial.