This substantial earthwork, measuring 38 metres across its interior, represents one of thousands of similar fortified farmsteads that once dotted the Irish countryside. The monument consists of a near-circular area enclosed by an impressive earthen bank and a deep, wide defensive ditch known as a fosse. Remnants of an outer bank and a smaller external fosse can still be traced, suggesting this was once a particularly well-defended homestead.

Today, the southern side of the ringfort has been reclaimed by nature, with trees and bushes growing throughout the earthworks. This overgrowth, whilst obscuring some of the monument's features, has helped preserve the site from agricultural damage that has befallen many similar structures across Ireland. Ringforts, or raths as they're known in Irish, were typically built between the early medieval period and the 12th century, serving as protected farmsteads for prosperous families and their livestock.

The Lissacholly ringfort was documented as part of the comprehensive Archaeological Survey of County Donegal, compiled by Brian Lacey and his team in 1983. This survey catalogued field antiquities spanning from the Mesolithic period through to the 17th century, providing invaluable records of Donegal's rich archaeological heritage. The double bank and fosse arrangement at Lissacholly suggests this was home to a family of some local importance, as such elaborate defences required considerable labour and resources to construct and maintain.