Their six-inch map marks the spot simply as "Chapel-in ruins", sitting inside a rectangular enclosure on the boundary between Gartlandstown and Ranahinch. That quiet cartographic fact hints at something worth pausing over: the building had almost certainly fallen out of use long before anyone came to draw it, and yet the community around it had preserved a very clear memory of why it had been built in the first place.

What survives on the ground today is modest. The chapel walls have collapsed to their foundations, their grass-covered footings tracing a rectangle roughly seventeen metres by seven. They sit within a larger earthen enclosure, defined by a low bank and an external fosse, a shallow ditch running around the outside, measuring approximately thirty metres by twenty-five. There are no headstones or burial markers inside, which is itself a little unusual for a site of this kind. The chapel was dedicated to St. Eoin, and local folklore collected through the Schools' Folklore Scheme identifies it plainly as a penal chapel, one of the small, unobtrusive Catholic places of worship built during the seventeenth or eighteenth century, when public Catholic observance was suppressed under the Penal Laws. The collected tradition puts it plainly: the building was raised "at the time the Catholic people of Ireland were being persecuted for the faith". The same folklore notes a holy well in the immediate vicinity, the kind of water source that frequently sat alongside early Christian and later Catholic sites in rural Ireland, often maintaining devotional use long after the associated structure had gone.

The site today is heavily overgrown with trees and bushes, and the enclosure bank is poorly preserved. The wall footings are there to be traced if you know what you are looking for, though the vegetation makes the going slow.