The ring barrow at Knockballyfookeen, a low circular earthwork typically raised over a burial and defined by a surrounding ditch and outer bank, is listed in the archaeological record, but finding it on the ground is another matter entirely. When archaeologists from the Archaeological Survey of Ireland visited in 2008, they found no clear surface remains to speak of, only a slight rise in the pasture and a gentle depression, the kind of undulation a farmer might cross without a second thought. A low linear ridge, roughly three metres wide and barely twenty centimetres high, runs northeast to southwest just to the west of the recorded location, but even this modest feature fails to show up on aerial orthophotos taken between 2011 and 2013, or on Google Earth imagery from November 2018.

The site was first recorded by Michael O'Dwyer between 1958 and 1961, his notes placing it within the townland of Knockballyfookeen with the Reask River running approximately sixty-five metres to the northeast, where it marks the boundary with the neighbouring townland of Milltown. Decades later, Eoin Grogan recorded the same monument in his thesis, but at a different location, and the discrepancy has never been fully resolved. It is this disagreement between two separate researchers, each working from their own survey, that gives the site its particular character in the archaeological record: not destroyed, not excavated, but genuinely uncertain in space. Alison McQueen and Vera Rahilly compiled the current record for the ASI, noting the contradiction and leaving the precise location formally unresolved.

The surrounding landscape is wet pasture, and the Reask River corridor can be soft underfoot, particularly through the wetter months. There is no visitor infrastructure here, and nothing to see in any conventional sense. What you are looking at, if you find the right field, is the problem itself: a faint rise that may or may not be the eroded remains of a burial mound that two researchers placed in two different spots. The value of coming here, if one were inclined to, lies less in the monument than in what its near-invisibility says about how thinly the evidence of prehistory sometimes survives, and how much of the archaeological record rests on notes made by individuals working decades apart, each doing their best with what the land was willing to show.