What was once mapped on Ordnance Survey six-inch sheets as a large circular enclosure has been reduced, through centuries of agricultural use and land reclamation, to a degraded raised platform measuring roughly 47 metres on its northeast-to-southwest axis. The ground beneath the surrounding pasture was once shaped deliberately, and the faint rise that remains is the only legible sign of it.

Circular enclosures of this kind are a familiar, if not always well-understood, feature of the Irish archaeological landscape. They range from early medieval ringforts, which functioned as defended farmsteads, to prehistoric ceremonial enclosures, and the distinction between the two is not always possible to make from surface remains alone. At Eskeromullacaun, the situation is complicated further by what local information records rather than what survives: four semicircular structures once stood within the interior. No visible trace of them remains today. Whether they were subsidiary buildings arranged around a central space, or something altogether different, the ground no longer says. The platform is best preserved along its southwestern, northern, and eastern arc, suggesting the northeastern portion has suffered the greatest loss to ploughing or ground disturbance over time.

The setting is worth noting. The enclosure occupies a ridge summit in undulating reclaimed pastureland, a position that would have offered clear sightlines across the surrounding terrain. That kind of elevated, deliberate placement is common among enclosures of early date in Ireland, where visibility and a commanding position appear to have mattered as much as the practical demands of farming or defence. What was once a prominent landmark in the local landscape is now almost entirely absorbed into the field system around it, surviving more as a cartographic fact than as anything a casual visitor would immediately recognise.