What survives of this earthen enclosure at Garryellen is, by any measure, fragmentary: the north side has been completely levelled, the entrance is unrecognisable, and the fosse, the defensive or boundary ditch that once ringed the whole structure, has disappeared on that same northern arc. Yet on the east, south, and west sides, enough remains to give a sense of what once stood here. The platform rises to about 1.2 metres on the south side, and the overall diameter of the monument reaches approximately 36 metres, a scale that suggests this was no casual feature of the landscape.

When the archaeologist O'Kelly recorded the site in 1942 to 1943, the interpretation offered was cautious but suggestive: this appeared to have been an earthen platform structure, a raised enclosure type found across Ireland and generally associated with early medieval settlement or activity, though the precise original function of this particular example was not established. Platform enclosures of this kind are sometimes understood as the foundations of enclosed farmsteads, their raised interiors keeping habitation above the damp ground level, which would make obvious sense here given the wet, low-lying terrain. The fosse surrounding the platform, where it survives, would have added both drainage and definition to the structure. What caused the northern portion to vanish entirely, whether through agricultural clearance, erosion, or simple centuries of use, the record does not say.

The enclosure is not signposted and sits in agricultural land, so access depends on the goodwill of landowners and an awareness of where to look. The clearest way to orient yourself before visiting is through aerial photography: the outline of the monument shows up on Ordnance Survey Ireland aerial photographs taken in earlier decades, and even on more recent Digital Globe imagery the shape of the enclosure remains legible from above in a way it may not be at ground level. Anyone approaching on foot in wet weather should be prepared for the terrain to live up to its description. What the eye catches on the surviving sides is a low, turf-covered rise and the depression of the fosse beside it, subtle features that reward patience and a low angle of light.