Rather than the simple stone surround or earthen hollow that marks many rural wells, this one in the townland of Killasmuggaun has been enclosed within a mortared well-chamber, roughly square in plan and just under two metres high, with a proper arched roof and a south-facing entrance. It sits beside a stream in low-lying grassland, close to a townland boundary, the kind of marginal, liminal location that wells in Ireland have occupied for centuries.

The chamber itself is modest in scale, measuring roughly three metres north to south and just under three metres east to west, but the care put into its construction sets it apart from a simple field well. Mortared stonework and a vaulted roof suggest this was considered worth protecting, whether for practical reasons of water supply or because the spring carried some devotional significance. Holy wells, springs venerated for their healing or spiritual properties, are found across Ireland in considerable numbers, and their enclosure in stone structures of varying elaborateness was common from the medieval period onward. Whether this particular well carried that kind of significance is not recorded, but its location near a townland boundary, a threshold space in the traditional Irish landscape, would be consistent with such use.