The ring barrow at Ballyhobin, a circular earthen mound and enclosing ditch of the kind used for burial across Ireland and Britain during the Bronze Age, does not appear on any Ordnance Survey Ireland historic maps. Its existence was only confirmed from the air, and even then it took decades of satellite imagery before its outline became fully legible.

The monument was first picked up during the Bruff aerial photographic survey of 1986, recorded as reference Bruff 149 (AP 4/3661), when it appeared as a roughly circular cropmark on the ground below. Cropmarks form when buried features, whether ditches, walls, or mounds, affect how vegetation grows above them, with grass or crops appearing greener, lusher, or conversely more parched depending on whether the underlying soil retains or drains moisture. The Ballyhobin example showed up again, this time as an irregular sub-oval cropmark, on a Google Earth orthoimage captured on 28 June 2018. The site sits 15 metres east of the townland boundary with Doonvullen Upper and approximately 50 metres southeast of a watercourse, occupying ground that is described in the site notes compiled by Alison McQueen and Vera Rahilly as rough, wet pasture.

There is no visitor infrastructure here, and the landscape itself offers little to the naked eye at ground level. Because the monument survives only as a subsurface trace, it is essentially invisible without aerial or satellite reference. Anyone curious enough to seek it out should consult the Google Earth orthoimage from June 2018 or the Bruff survey record beforehand, as these are the only reliable guides to the monument's position and shape. The wet, unimproved pasture that covers it is part of why the site has persisted at all, since heavy agricultural activity would likely have erased whatever shallow earthwork remains. The townland boundary nearby serves as a useful orientation point for locating the general area on modern mapping.