Trethevy Quoit is thought to be the best preserved quoit in Cornwall. Four overlapping granite slabs form the sides of the chamber with lateral stones at the back and front. The stone at the back leans inwards and a large capstone rests on these uprights at an acute angle. A round hole has been made through the top corner of the capstone. A small antechamber is at the front of the monument with two upright stones remaining. Around the quoit is a stony cairn. Sites of this type are thought to have been constructed in the early and middle Neolithic period between 3700-3300 BC. Although no bones have been found, they were used over long periods as communal tombs. Quoits were also used for cremations placed in urns in the Bronze age.
Go north from Liskeard on a minor road to Tremar. The Quoit is signposted from a small car park in Trethevystone, between Darite and Tremar.