The well inside is dry. Whatever water once made this a place of pilgrimage has long since gone, and the inscription carved above the entrance, "Ave Maria", noted by the historian William Carrigan in 1905, has worn beyond reading. What remains is the shell of a devotional site that once drew considerable crowds, quietly subsiding into the field.

The well was known as Lady's Well, dedicated in the tradition of Marian holy wells across Ireland, and on the 15th of August, the feast of the Assumption, an annual gathering called a Pattern was held here. A Pattern, from the Irish "pátrún" meaning patron saint, was a communal religious observance tied to a particular saint or sacred site, often combining prayer with the kind of socialising that occasionally troubled Church authorities. By 1839, when Ordnance Survey officers were gathering local knowledge across the country, the Pattern at Lady's Well had already ceased, having shifted some years earlier to an old cross a little to the north. That cross, already broken into two pieces by the time it was recorded, has since been moved roughly 420 metres to the northwest, where the two fragments are displayed in a small green at Tullaroan crossroads. The well structure itself, the compact circular stone building with its southward-facing opening, was erected sometime before 1905 to shelter the well, its rough-coursed stonework built directly into the slope of the hill.

The fragments of the old cross at Tullaroan crossroads are the most accessible part of this story for anyone passing through the village. The well itself lies in open pasture about 120 metres north of Tullaroan church, a modest and easy-to-overlook structure that gives little outward indication of the devotional life it once supported.