Quoit

A quoit (from Cornish coit or coyt and Middle English coite, meaning a flat stone or iron disc thrown in the traditional game of quoits, because seventeenth- and eighteenth-century rural observers likened the monuments' flat, tilted roof slabs to giant petrified throwing discs) is the regional southwestern British and Welsh term for an Early Neolithic megalithic portal dolmen constructed between approximately 3800 and 3300 cal BCE. Concentrated across the granite uplands of West Penwith and Bodmin Moor in Cornwall (Lanyon Quoit, Chûn Quoit, Zennor Quoit, Mulfra Quoit, Trethevy Quoit) and the igneous outcrops of Pembrokeshire and Gower in Wales (Pentre Ifan, Carreg Coetan Arthur, Arthur's Stone), quoits represent some of the earliest monumental stone architecture in the British Isles. Each quoit consists of a polygonal or rectangular burial chamber of upright orthostats—frequently arranged in an H-plan with a tall vertical blocking slab or "false portal" at the front—supporting a single heavy capstone (weighing between 8 and 60 metric tons) tilted at a dramatic upward angle toward the sky.

While Welsh antiquarians such as Edward Lhuyd and Henry Rowlands popularized the Breton-derived term cromlech and dolmen in the early eighteenth century, Cornish folk taxonomy consistently referred to megalithic portal tombs as quoits (or Giant's Quoits, attributing their construction to mythical folklore giants who hurled granite slabs across the moorland from Carn Brea or Trencrom Hill). Pioneering graphic surveys and structural measurements of the Cornish quoits were compiled by the Penzance antiquarian William Borlase in Antiquities, Historical and Monumental, of the County of Cornwall (1754) and William Copeland Borlase in Naenia Cornubiae (1872). Recording Lanyon Quoit before its collapse during a violent thunderstorm in October 1815, William Borlase noted that the original monument stood so high that a mounted horseman could ride upright beneath its horizontal granite capstone.

In modern megalithic classification—systematized by Glyn Daniel (1950), Frances Lynch (1969), and Alasdair Whittle (2011)—Cornish and Welsh quoits belong to the wider Irish Sea Portal Dolmen tradition (alongside famous Irish examples such as Poulnabrone in the Burren and Ballykeel in Co. Armagh). Despite variations in local lithology (coarse porphyritic Cornubian granite in Penwith; spotted dolerite/bluestone and rhyolite in Pembrokeshire), quoits share five diagnostic structural features:

1. H-Plan Chamber and Recessed Portal Façade

The core chamber is rectangular, trapezoidal, or polygonal in plan (typically 1.8 to 3.5 meters long and 1.2 to 2.0 meters wide), formed by two parallel side slabs, a shorter rear (back) orthostat, and two tall portal stones flanking the eastern or southeastern front entrance. Set between the two front portal pillars is a transversal vertical slab—the portal septal stone or "false door"—which permanently closes most of the entrance opening, though at Trethevy Quoit in eastern Cornwall a deliberate rectangular perforation (kennel-hole or porthole opening, 0.50 × 0.40 m) was cut into the bottom right corner of the front closing slab to allow ritual insertion of bones or offerings after the tomb was sealed.

2. The Inclined ("Ski-Jump") Capstone

The most visually striking feature of a quoit is its single overarching capstone (measuring up to 5.5 meters long and weighing 10 to 60 tonnes), which is poised on the narrow top points of just three or four orthostats so that its thickest, heaviest end rises high over the front portal (up to 2.5 to 4.6 meters above ground) while its thinner rear edge slopes downward at a 20° to 35° angle toward the back stone. Rather than being dragged up external earthen ramps from the valley floor, geoarchaeological studies by Chris Tilley and Richard Bradley indicate that many quoits were constructed by in-situ extraction ("pit-and-prop" engineering): builders levered up a naturally detached frost-shattered granite tor slab on timber cribbing, dug an extraction pit beneath it, wedged the upright support orthostats underneath the raised slab, and cleared away the surrounding soil.

3. Low Basal Platform or Cairn Skirt vs. Uncovered Chamber

For decades, archaeologists debated whether quoits were originally buried beneath huge earthen tumuli or stone cairns that subsequently eroded away. Modern geophysical surveys and excavations around Chûn Quoit, Zennor Quoit, and Pentre Ifan (excavated by W. F. Grimes in 1936–1937 and 1958–1959) demonstrate that while a low oval or circular cairn skirt (0.5 to 1.2 meters high) of fieldstones and quartz cobbles was packed around the base of the orthostats for lateral stability, the upper half of the orthostats and the dramatic floating capstone were intentionally left exposed from the beginning as a silhouetted architectural sculpture visible across the moorland horizon.

Because the podzolic moorland soils developed over Cornubian granite and Welsh Ordovician bedrock are strongly acidic (pH 3.8–4.8), unburned human skeletal bone dissolves completely within a few centuries unless calcined by fire or preserved in alkaline limestone crevices (as at Poulnabrone in Ireland, where AMS radiocarbon dating of 36 unburned skeletons yielded dates of 3800–3200 cal BCE). Nevertheless, excavations at Welsh and Cornish quoits have established their chronological and ritual context:

1. Primary Early Neolithic Horizon (c. 3800–3300 cal BCE): Excavations by Sian Rees at Carreg Coetan Arthur in Pembrokeshire recovered Early Neolithic Carinated Bowl ceramics, struck flint flakes, and radiocarbon dates centered around 3700–3500 cal BCE, confirming that portal dolmens/quoits were erected during the first centuries of the Neolithic Revolution in western Britain—contemporary with or slightly earlier than Cotswold–Severn long barrows and Orkney stalled cairns.
2. Excarnation and Ancestral Bone Circulation: Because the internal chambers of quoits such as Chûn Quoit (1.6 × 1.5 m) are small and frequently sealed by tall closing slabs, archaeologists Julian Thomas and Vicki Cummings propose that quoits did not function as walk-in ossuaries like later passage graves. Instead, they served as elevated excarnation altars or symbolic ancestral reliquaries where defleshed bones—exposed on the elevated flat capstone or passed through the narrow gap beneath the tilted roof—were curated and rotated during seasonal ceremonies.
3. Bronze Age Reuse: At Zennor Quoit, Mulfra Quoit, and Sperris Quoit, subsequent Bell Beaker and Early Bronze Age communities (~2200–1600 cal BCE) returned to the ancient Neolithic monuments to insert secondary cremation deposits, flint arrowheads, and whetstones into the chambers and surrounding stone cairn skirts.
4. Tor Mimicry and Landscape Phenomenology: In A Phenomenology of Landscape (1994) and subsequent field surveys across West Penwith and Bodmin Moor, Christopher Tilley demonstrated that every Cornish quoit is sited within direct visual alignment of prominent natural weathered granite tors (such as Carn Galver, Trencrom Hill, and Roughtor), with the angled capstone of each quoit deliberately tilted to mimic the natural dip slope of the nearest sacred bedrock outcrop.

Why are Cornish and Welsh portal dolmens called quoits?

In the traditional British rural game of quoits, players throw flat circular rings or stone discs toward an iron pin (hob). Because the large, flat, tilted granite capstones of Early Neolithic portal dolmens in Cornwall and Pembrokeshire look like colossal flat throwing stones frozen in mid-flight, local folklore named them Giant's Quoits.

Were quoits originally covered by a mound of earth?

No. While early antiquarians assumed that quoits were the stripped stone skeletons of eroded earthen tumuli, modern excavations at Pentre Ifan, Chûn Quoit, and Carreg Coetan Arthur prove that builders only constructed a low waist-high stone platform or cairn ring around the base of the upright supports, leaving the dramatic tilted capstone openly exposed against the skyline.

Why did Lanyon Quoit collapse in 1815, and how did it change?

In October 1815, violent autumn gales coupled with antiquarian treasure-digging around the base of the upright stones caused Lanyon Quoit to topple over, breaking one of its four granite orthostats. In 1824, local residents raised funds and used Royal Navy block-and-tackle lifting gear from Devonport Dockyard to re-erect the 13.5-tonne capstone on the three surviving trimmed uprights—leaving the rebuilt monument roughly 0.6 meters lower than when William Borlase sketched a horseman riding beneath it in 1754.

1. Whittle, A., Healy, F., & Bayliss, A. (2011). Gathering Time: Dating the Early Neolithic Enclosures of Southern Britain and Ireland (2 vols.). Oxbow Books. https://doi.org/10.2307/j.ctvh1dwp2
2. Cummings, V., & Whittle, A. (2004). Places of Special Virtue: Megaliths in the Neolithic Landscapes of Wales. Oxbow Books. https://doi.org/10.1017/S0003598X00113869
3. Barnatt, J. (1982). Prehistoric Cornwall: The Ceremonial Monuments. Turnstone Press. https://openlibrary.org/books/OL3129457M/Prehistoric_Cornwall
4. Grimes, W. F. (1949). "Pentre-ifan burial chamber, Pembrokeshire." Archaeologia Cambrensis, 100, 3–23. https://journals.library.wales/view/4718179/4727488/12
5. Kytmannow, T. (2008). Portal Tombs in the Landscape: The Chronology, Monumentality and Landscape Setting of Portal Tombs in Ireland, Wales and Cornwall. BAR British Series 455. Archaeopress. https://doi.org/10.30861/9781407302515