Though nothing remains visible above ground today, this ancient earthwork once stood in a commanding position on elevated, well-drained land; the sort of strategic location that would have offered its inhabitants clear views across the surrounding landscape whilst providing good drainage and shelter from the elements.

The enclosure represents one of countless archaeological features that pepper the Irish countryside, most likely dating from the early medieval period when such ringforts served as defended farmsteads for prosperous families. These circular earthworks, typically consisting of a raised bank and external ditch, were the rural homes of Ireland's farming communities for over a millennium, with thousands constructed between roughly 500 and 1200 AD. The single ring at Clashygowan suggests it was likely home to a family of moderate means, as wealthier inhabitants often built multivallate examples with two or three defensive rings.

Like many of Ireland's ancient monuments, the Clashygowan enclosure has succumbed to centuries of agricultural improvement, land clearance, and natural erosion. Its documentation in the Archaeological Survey of County Donegal ensures that whilst the physical structure has vanished, its location and significance remain part of the county's rich archaeological record, compiled through meticulous fieldwork by Brian Lacey and his team in the early 1980s.