This impressive standing stone rises 2.44 metres high, with a base measuring one metre wide and a thickness of just 29 centimetres, giving it a distinctly blade-like profile against the Irish landscape. Located in Carrowmenagh, the stone represents one of many prehistoric monuments scattered across Donegal's rugged countryside.

Standing stones like this one are amongst Ireland's most enigmatic archaeological features, typically dating from the Bronze Age period between 2500 and 500 BCE. While their exact purpose remains debated by archaeologists, theories range from territorial markers and astronomical alignments to memorial stones or ritual sites. The remote mountain setting of the Carrowmenagh stone suggests it may have served as a waymarker for ancient travellers crossing the highlands, though without excavation, its true function remains a mystery.

The stone was documented as part of the comprehensive Archaeological Survey of County Donegal, conducted by Brian Lacey and his team in 1983. This extensive project catalogued field antiquities throughout the county, spanning from the Mesolithic period through to the 17th century, ensuring that monuments like the Carrowmenagh standing stone are preserved in the historical record. Today, visitors willing to trek across the open moorland can still encounter this silent sentinel, unchanged since our ancestors erected it thousands of years ago.