It does not appear on any edition of the Ordnance Survey map, and there is nothing on the ground today to indicate where it once was. What makes this absence particularly striking is how it came about: the well, dedicated to St Senan, was not lost to time or buried by the slow accumulation of soil. It was deliberately filled in, stopped up by the casting in of gravel and other rubbish, according to the folklorist Caoimhín Ó Danachair, writing in 1955.

Holy wells are a widespread feature of the Irish landscape, typically springs or water sources associated with an early Christian saint and visited by local people for healing, prayer, or the observance of a patron day. St Senan's Well sat within the churchyard at Shanagolden, a site recorded under the reference LI019-012002-. According to Seán Spellissy, writing in 1989, the well was still being frequented as a pilgrimage site into the early nineteenth century, which suggests it retained genuine devotional use well into the modern period before something caused it to fall into disfavour. The deliberate nature of its closure, filled rather than simply abandoned, implies a conscious decision to end its use, though no record survives of who made that decision or why.

For anyone visiting the graveyard at Shanagolden today, there is genuinely nothing to find. The well leaves no impression on the landscape and no cartographic trace. What the site offers instead is a particular kind of historical curiosity: the record of something erased. The churchyard itself remains accessible, and the graveyard referenced alongside the well is a documented archaeological site in its own right. Visitors drawn to the area might focus their attention on the broader ecclesiastical remains rather than searching the ground for a well that was, by all accounts, quite thoroughly obliterated.