The enclosure it once formed is almost perfectly square, measuring roughly 13.3 metres by 13.1 metres, with a narrow entrance gap on the western side just wide enough for a person to pass through. Grassed over and worn by the Atlantic weather, the drystone construction, dry stone walling being built without mortar and relying entirely on the careful placement of stone, has softened into the headland to the point where the structure and the ground around it are barely distinguishable. Inside, there are bumps and hollows whose purpose is not recorded.

What gives the site its particular quality is not any single feature but the combination of its setting and its ambiguity. The headland is flanked by steep gullies on either side, which would have made this a naturally defensible or at least clearly bounded spot. A second enclosure of similar character lies roughly fifty metres to the north-east, suggesting that whatever activity this place once supported, it was not entirely isolated but part of some small pattern of use on the island. Inishshark itself was permanently evacuated in 1960, when its last remaining inhabitants were resettled on the mainland, and the island has been uninhabited since. Whatever memory attached to these structures left with the people who knew them.