This ancient monument stands 1.4 metres tall, with an irregularly shaped form that tapers to a point at its summit. The stone measures 1.45 metres wide at its base, expanding to a maximum width of 2.46 metres, and has a thickness of 0.6 metres. Aligned along a north-northeast to south-southwest axis, this weathered monolith has become such a significant landmark that local farmers have left an oval area measuring 8 by 3.5 metres untilled around its base, preserving the immediate surroundings of what the community recognises as an ancient monument.

The standing stone isn’t alone in its field; it’s accompanied by a collection of five large, irregularly shaped stones that cluster around its base. Three of these companion stones rest adjacent to the foot of the main stone on its east-southeast side, whilst two more sit at the west-northwest side. This arrangement suggests the site may have held particular significance in prehistoric times, though the exact purpose and date of the monument remain mysteries typical of Ireland’s numerous standing stones.

The prominence of this feature on the landscape has ensured its survival through generations of agricultural activity, with local knowledge and respect for the site preventing its destruction or removal. Like many of Ireland’s prehistoric monuments, the Treantagh standing stone offers a tangible connection to the island’s ancient past, standing sentinel over the drumlin landscape much as it has for potentially thousands of years.