Calliagh

The monument consists of large stones. The gallery, about 7.5 metres long, preserves remains of double walls, mainly on the south side. At the front is an antechamber, separated from the main gallery by a side slab.

Inside the chamber one stone leans against a wall. It is too small to have been a capstone, but it may be an orthostat of the kind occasionally observed, which originally divided off the entrance. Some capstones survive in displaced positions.

The mound is almost 20.0 m long and more than 10.0 m wide. At the front and along one side of the mound stand two stones about 2.0 metres high, which could be original standing stones or displaced capstones. Upright stones at the rear of the monument may be part of the original kerb.

The monument is described as having been built between 4000 and 2500 BCE, in the Neolithic. The catalogue record gives a typological estimate of 2500 to 2000 BCE; neither date rests on excavation.