The structure is modest, almost spare: a square enclosure roughly one metre across, with a single entrance facing south-east, wide enough to step through, though there are no steps to help you down. What makes it quietly puzzling is not the well itself but the question of what to call it, and indeed whether the name has always belonged to this particular spot at all.

Three holy wells lie in close proximity to one another at Scardan Beg, and the mapping record shows a long-standing confusion between them. On the Ordnance Survey six-inch map of 1837, this well is labelled St. Patrick's Well, with St. Brigid's Well marked about 110 metres to the east-south-east. By the revised edition of 1940, the labels have shifted: this same structure now carries the name St. Brigid's Well. Whether that represents a genuine correction, a cartographer's error, or some change in local usage is not clear. Holy wells in Ireland were, and often still are, sites of patterns, small annual gatherings tied to the feast day of the saint to whom the well is dedicated. The fact that two of the most widely venerated saints in the Irish tradition, Patrick and Brigid, appear to have been associated with wells within a short walk of each other says something about how densely layered this kind of devotional landscape could become. The drystone enclosure, built without mortar, using tightly fitted stone, frames a space that is functional rather than ceremonial in its appearance, though the care taken in its construction suggests it was not put together casually.