Measuring 1.62 metres in height and 1.55 metres wide at its base, this ancient monolith stands aligned on a north to south axis, a silent sentinel that has watched over the landscape for millennia. Like many of Ireland's standing stones, its original purpose remains enigmatic; it may have served as a territorial marker, a memorial to the dead, or perhaps held astronomical significance for the people who erected it during the Bronze Age.

The stone's substantial width relative to its height gives it a particularly sturdy, grounded appearance that distinguishes it from the more slender examples found elsewhere in Ireland. Its placement on fertile pasture land suggests this area has been valued for agriculture since ancient times, with successive generations of farmers working the fields around this prehistoric monument. The north to south orientation is intriguing, as many Irish standing stones show deliberate alignment patterns that may have related to seasonal festivals, solar events, or ancient routeways across the landscape.

This particular stone was documented as part of the comprehensive Archaeological Survey of County Donegal, compiled in 1983 by Brian Lacey and his team of researchers. Their work catalogued the county's field antiquities from the Mesolithic period through to the 17th century, creating an invaluable record of Donegal's archaeological heritage. The standing stone at Cashel represents just one piece of this vast historical puzzle, yet its enduring presence connects modern visitors directly to the prehistoric communities who first shaped this corner of Ireland.