Toberfraughan, the name itself a form of the Irish tobar, meaning well or spring, sits just twenty metres east of Kilfraughaun Church in Dowagh, emerging from the ground and running into a larger stream fed by several other water sources in the same damp ground. Holy wells of this kind were venerated sites long before and long after the arrival of Christianity in Ireland, functioning as places of pattern days, rounds, and local devotion, often thought to possess curative properties associated with their patron saint.

This well is dedicated to Saint Fursagh, whose name is also preserved in the nearby church. The precise identity of Fursagh is not entirely certain, but the pairing of well and church under the same saintly name is a pattern seen across Ireland, where early ecclesiastical sites clustered around water sources that already held spiritual significance. The close proximity of Toberfraughan to Kilfraughaun suggests a long continuity of use at this particular spot in the landscape around Lough Mask and Lough Carra, an area with a dense concentration of early Christian and prehistoric remains.