Tobermurry, or Tobar Muire, is Mary's Well, one of the many holy wells scattered across Ireland that mark the intersection of pre-Christian water veneration and later Marian piety. Holy wells of this kind were traditionally sites of pattern days, where local communities gathered for prayer, ritual circumambulation, and communal gathering, often on the feast day of the saint or figure to whom the well was dedicated.

The well appears on the Ordnance Survey six-inch maps of both 1839 and 1923, labelled consistently as Tobermurry, which suggests it was a recognised feature of the local landscape across a long stretch of the nineteenth and twentieth centuries. Its position is precise and telling: towards the lower end of a north-east to south-west ridge, with hill spurs reaching east and south within roughly five hundred metres, and at the very head of a stream running north-west to south-east. The well itself is stone-lined and lintelled, a modest but careful piece of construction. Beside it stands a granite cross measuring 58 centimetres high and 47 centimetres wide, with square-cut arms each roughly 16 by 15 centimetres. The cross is probably of modern origin, likely placed or replaced at some point in the twentieth century, though it sits within a tradition of marking such sites with Christian symbols that is very old indeed.