Not from the road, not on satellite imagery, not on any historical Ordnance Survey map. It exists, in the documentary record at least, as a single aerial photograph taken in 1986, after which it appears to have slipped below the threshold of visibility entirely.

A ring barrow is a type of low circular earthwork, typically consisting of a central mound surrounded by a ditch and an outer bank, used for burial during the Bronze Age or Early Iron Age. They are common enough across Ireland, but most survive as at least a faint trace on the ground. This one, recorded during the Bruff aerial photographic survey of 1986 and catalogued as Bruff 16.2 (AP 4/3625), was identified as a circular ring barrow on poorly drained reclaimed grassland, roughly ten metres northwest of a small stream that flows northeast into the Reask River. A separate enclosure sits around sixty metres to the southwest. When researchers checked Ordnance Survey Ireland orthoimages captured between 2005 and 2012, and Digital Globe imagery from 2011 to 2013, the feature was absent. A Google Earth image from November 2018 showed nothing either. It had been visible from the air for what appears to have been a single survey window more than thirty years ago, likely as a cropmark or soilmark produced by differential growth in the grass above the buried feature, conditions that depend heavily on rainfall, soil moisture, and seasonal timing.

For anyone curious enough to seek out this corner of south Limerick, the surrounding landscape is low-lying and agricultural, and the site itself offers no obvious landmark or waymarker. The ground is described as poorly drained reclaimed grassland, which means the going can be wet underfoot, particularly outside summer months. The record compiled by Edmond O'Donovan, uploaded to the national monuments database in September 2020, is currently the most complete account of the site's existence. What the 1986 photograph captured may be recoverable through future aerial or geophysical survey under the right conditions, but for now the ring barrow at Bohernagraga occupies that strange category of monument that is simultaneously recorded and effectively invisible.