Somewhere in or near the village, there is a holy well, a site old enough to have earned formal recognition as a recorded monument, though the details of its dedication, its patron, and its history of use remain, for now, officially undigitised.

Holy wells are among the most enduring features of the Irish landscape, pre-Christian in origin yet absorbed so thoroughly into Catholic devotional practice that the two traditions became almost inseparable. Many are associated with a local or regional saint, and visits to them, known as patterns from the Irish word "pátrún" meaning patron, were once occasions for both prayer and communal gathering, often held on the feast day of the well's dedicatee. The wells themselves were understood to carry curative properties, and offerings of cloth, coins, or small personal objects were frequently left at them. The one at Querrin belongs to this long tradition, though the specific saint, the nature of any surviving structure, and whether active devotion continues there are details that the available record does not yet supply.