Marked as Grumley's Well on the Ordnance Survey's six-inch map of 1837, it is also known locally as the Ticknock Well, a name that connects it to the townland rather than to any particular family. The well sits within the parish of Taney, enclosed by a railing, and the roof slab above it was carved, at some point around the 1890s, with the letters IHS, a cross, and two chalices. That carving, it turns out, was the work of a grandfather in the Mulligan family, who farmed the land around it and were distinguished from other Mulligans in the area by being called the "well" Mulligans.

The well's former life as a site of pilgrimage and cure is recorded in two distinct sources, separated by decades but quietly consistent with one another. When the folklorist Caoimhín Ó Danachair described it in 1958, he noted that it had been built up and covered over, that the carved slab bore its devotional symbols, and that people had once come to drink the water, bathe affected parts of the body, say prayers, and hang rags on the surrounding bushes as offerings. The practice of tying rags or cloth to a bush or tree at a holy well, sometimes called a clootie offering, is one of the oldest forms of votive practice associated with such sites in Ireland, the idea being that as the cloth decays, so too does the ailment. Separately, a schoolchild's account collected through the Irish Folklore Commission's Schools' Collection, taken from Sandyford School and preserved in the Dúchas archive, records that the well was particularly associated with the cure of sore eyes, and that people came to bathe their eyes there when the child's father was young. By 1958, those visits had stopped, and the well was being used for domestic purposes only. It is now overgrown.

The well is not currently a managed heritage site and is described as overgrown, so anyone looking for it should approach with modest expectations. It lies along a road in Ticknock, in the general area south of Sandyford, and its historical location can be cross-referenced against the 1837 Ordnance Survey six-inch map, which is freely available through the OSi historic maps viewer. The stonework and carved slab may still be traceable beneath the vegetation, and the iron railing that once enclosed it may survive in some form. For those interested in the folklore of holy wells, the schoolchild's account on the Dúchas website at duchas.ie is worth reading in full; it is one of those small, precise voices from the 1930s Schools' Collection that preserves detail no official survey would have thought to record.