Like many of Ireland's coastal fortifications, this defensive site takes advantage of the natural protection offered by steep cliffs and the sea, requiring only the construction of ramparts across the neck of the promontory to create a formidable stronghold. These types of forts were typically built during the Iron Age, though some continued to be used well into the medieval period.

The fort represents just one piece of Donegal's rich archaeological landscape, where prehistoric communities left their mark through various defensive structures, settlements, and ritual sites. Promontory forts like this one served multiple purposes; they were defensive positions, certainly, but also centres of trade, metalworking, and social gathering. The coastal location would have provided access to marine resources whilst offering clear views of approaching vessels, whether friendly traders or potential threats.