Raths, the most common surviving field monuments in Ireland, were typically built between roughly the sixth and twelfth centuries. They functioned as enclosed farmsteads, their circular banks and ditches defining a domestic space rather than a military one, though the boundary carried social meaning too, marking a household's status within the early Gaelic world.

The word rath refers specifically to an earthen ringfort, as distinct from a cashel, which is built of stone. Clare has both in considerable numbers, a reflection of the county's mixed geology and of the density of early medieval settlement across Munster. Sheeaun, like many Irish townland names, likely preserves an older Irish form, possibly derived from the diminutive of "sí" or a personal name, though the precise etymology is a matter for specialists. The fort itself would have sheltered a farming family of some standing, perhaps with a souterrain, an underground stone-lined passage used for storage or refuge, tucked beneath the interior ground surface.

Because detailed records for this particular site have not yet been made publicly available, the finer points of its condition, dimensions, and any recorded features remain undocumented in open sources. What can be said is that ringforts of this type are often still visible as low, grass-covered circular banks, sometimes partially eroded by centuries of ploughing or tree growth, and that Clare's raths tend to appear in farmland that has seen continuous use since long before anyone thought to write any of it down.