Measuring approximately 29 metres from west to east and 22 metres north to south at its widest point, the site narrows dramatically to just 7 metres across at its eastern end. The monument sits on sloping ground that offers commanding views over the surrounding countryside to the south and west, with the Atlantic Ocean visible to the north.

The enclosure’s most striking feature is its dramatic change in elevation; whilst the eastern end sits almost level with the surrounding ground, the western end has been raised to nearly 3 metres in height. Short stretches of earthen bank, roughly 30 centimetres high, can still be traced along parts of the southern and northwestern perimeter, though these are rather insubstantial remnants of what may once have been more substantial boundaries. A modern field boundary now cuts across the eastern side of the site, whilst a scarp of varying width frames the northern, western and southern sides, creating an almost rectangular outline when viewed together with the field boundary.

Despite its local name suggesting use as a burial ground, the exact nature and date of this monument remain somewhat mysterious. The site occupies good grazing land with limited evidence of tillage, and its elevated position and enclosed nature certainly suggest it held some significance for the local community. The archaeological survey notes provide tantalising hints about its form and structure, but without excavation, the true purpose of An Reilig Beag; whether it genuinely served as a graveyard or fulfilled some other function entirely; remains an intriguing puzzle in Donegal’s archaeological landscape.