Measuring 60 by 46 metres internally, this archaeological site at Glenmakee appears to have been fortified with two concentric stone walls, though only the southern section of the outer wall remains clearly visible today. The inner wall can still be traced around most of its circuit, despite considerable damage; quarrying on the eastern side has particularly disrupted the original structure. The enclosure’s long axis runs north to south, and archaeologists have identified what may be an entrance on the southern side, near an unusual rectangular rock outcrop that projects within the interior space.

The strategic positioning of this enclosure speaks to the careful planning of its builders. From its elevated location on the ridge, the site commands expansive views northward across Trawbreaga Bay whilst overlooking bogland to the south; a placement that would have provided both defensive advantages and control over the surrounding landscape. The choice of this prominent position, combined with the substantial effort required to construct double stone walls, suggests this was a site of some importance to the community that built it.

Today, visitors can still walk the perimeter and imagine the scale of this ancient structure, though time and human activity have taken their toll. The quarrying that damaged the eastern section serves as a reminder that these sites have been part of a living, working landscape for centuries, with stone being reused by successive generations. Despite this damage, enough remains of the enclosure to appreciate its original form and to ponder its purpose, whether it served as a defended settlement, a ceremonial space, or fulfilled some other role in the lives of Donegal’s early inhabitants.