Ringforts, known in Irish as raths, were the most common form of early medieval rural enclosure in Ireland, typically serving as farmsteads for a single family or small community. They were defined by one or more circular banks and ditches, and this example follows that pattern precisely, its bank still rising to an external height of over a metre and a half, with a fosse, the external ditch, still measurable at nearly a metre deep.

The fort at Jossestown is modest in scale, with a mapped diameter of around 25 metres, but its detail is telling. Two separate breaches have been cut into the bank, one at the south tapering from three metres on the interior to under a metre on the outside, and a second narrower gap to the northeast. Whether these were original entrances, later modifications, or the result of agricultural interference is not recorded, but the asymmetry gives the monument a slightly provisional, worked-over character. The eastern edge of the enclosure sits directly on the townland boundary between Jossestown and Clonacody, meaning the old earthwork has, at some point, been pressed into service as a property line. Roughly 150 metres to the east stand a castle and Clonacody House, a cluster of later monuments that suggests this corner of Tipperary has drawn occupation across very different centuries.

Access inside the fort is considerably hampered by dense, impenetrable overgrowth in the eastern and southern sectors, and the monument is enclosed on most sides by a trackway and field boundaries. The bank and fosse are clearest on the northern and western arcs, where the ground is less congested, and the exterior ditch profile remains readable from outside the woodland edge.