The best preserved of all quoits (also called dolmens or cromlechs) in Cornwall, UK is Chûn Quoit, located in open moorland near Pendeen and Morvah. The uphill walk is worthwhile because this is perhaps the most visually satisfying of all the quoits. Standing on a windy ridge, near the much later constructed Chûn Castle hillfort, it surveys heather moorland and the open sea.
As with the other quoits, the quoit was probably covered by a round barrow (35 ft in diameter), of which much evidence abounds. It was a closed chamber and its mushroom-domed capstone measures 3.3 m (11 ft) by 3 m (10 ft), with a maximum thickness of 0.8 m (2 ft 7 in). It is supported about 2 m (7 ft) from the ground by four substantial slabs.
This is the only cromlech in west Penwith to retain its capstone 'in situ' - others have been re-settled. It is believed to have been built around 2400BC, two millennia before the neighbouring Chûn Castle.