Known as An Leac Mhór, meaning roughly "the great flagstone" in Irish, it is the kind of monument that rewards the attentive rather than the casual eye.

The stone stands 2.1 metres tall and measures 1.15 metres on each side at its base, making it a substantial presence in an otherwise agricultural setting. It is irregular in plan rather than neatly dressed, and it leans to the north-west, which may reflect centuries of soil movement or simply the conditions at the time it was erected. Packing stones, the smaller stones used to wedge and stabilise a standing stone in its socket, are visible at the base, suggesting the ground has shifted or eroded enough over time to expose what was once buried. The stone's long axis runs north-east to south-west, an alignment that may be deliberate, as many Irish standing stones appear oriented in relation to solar or lunar events, though for An Leac Mhór no specific astronomical interpretation has been recorded. Standing stones of this type were erected across Ireland from the Neolithic period through the Bronze Age, and while their precise function remains debated, theories range from boundary markers and ritual sites to memorials for the dead.