This Neolithic monument dates to between 4,000 to 3,000 B.C and is one of the finest if not the finest examples in Ireland. This type of tomb is found in places as diverse as Germany (Hünengrab), Portugal (Anta), Spain, The Channel Islands, Wales (Cromlech) and Ireland (Dolmen). Located in Kilclooney, the monument comprises a huge capstone approximately four by six meters, supported by two 1.8 meter uprights, known as portals and a back stone on which the capstone rests. A notable feature of the back stone is the chocking stone. This may have been used to adjust the angle of the capstone as it was being manipulated into place.