A ringfort, or rath, is an enclosed farmstead of the early medieval period, typically built by a single family and defined by one or more earthen banks. This one at Srananooan is modest in scale, measuring around 29 metres across at its widest, but it retains enough of its original form to read clearly in the ground.

The enclosing bank, now overgrown, still stands between 1.1 and 1.4 metres high on its outer face, with an internal height of only 0.35 to 0.6 metres, the difference reflecting how the bank was thrown up from the digging of the fosse outside it. That outer fosse, a defensive ditch running around the south-east, west, and north-east of the site, reaches a depth of around 0.7 metres in most places, shallowing to almost nothing at the north. A field bank follows the outer edge of the fosse for much of its arc, suggesting the enclosure was later incorporated into the working agricultural boundaries of the area. The original entrance, 4.3 metres wide, faces east, which is a common orientation in Irish ringforts and may reflect conventions around sunrise or prevailing wind. Notably, a second rath lies approximately 200 metres to the south, and the proximity of two such enclosures in the same townland points to a settlement pattern where related households occupied neighbouring sites within the same farmed territory.

The drumlin setting is part of what makes the site coherent as a whole. Drumlins, the smooth egg-shaped hills left by glacial action and common across the midlands and north of Ireland, offered early farmers elevated ground that was reasonably well drained and visible across the surrounding boggy hollows. Positioning a homestead at the crest of one gave both practical and social advantages. The Srananooan rath follows that logic precisely.