There are three related types of Neolithic earthwork that are all sometimes loosely called henges. The essential characteristic of all three is that they feature a ring-shaped bank and ditch, with the ditch inside the bank. Because the internal ditches would have served defensive purposes poorly, henges are not considered to have been defensive constructions. The three henge types are as follows, with the figure in brackets being the approximate diameter of the central flat area:
- Henge. The word henge refers to a particular type of earthwork of the Neolithic period, typically consisting of a roughly circular or oval-shaped bank with an internal ditch surrounding a central flat area of more than 20 m (66 ft) in diameter. There is typically little if any evidence of occupation in a henge, although they may contain ritual structures such as stone circles, timber circles and coves. Henge monument is sometimes used as a synonym for henge. Henges sometimes, but by no means always, featured stone or timber circles, and circle henge is sometimes used to describe these structures. The three largest stone circles in Britain are each within a henge. Examples of henges without significant internal monuments are the three henges of Thornborough Henges. Although having given its name to the word henge, Stonehenge is atypical in that the ditch is outside the main earthwork bank.
- Hengiform monument. Like an ordinary henge, except the central flat area is between 5 and 20 m (16–66 ft) in diameter, they comprise a modest earthwork with a fairly wide outer bank. The terms Mini henge or Dorchester henge are sometimes used as synonyms for hengiform monument. An example is the Neolithic site at Wormy Hillock Henge.
- Henge enclosure. A Neolithic ring earthwork with the ditch inside the bank, with the central flat area having abundant evidence of occupation and usually being more than 300 m (980 ft) in diameter. Some true henges are as large as this, but lack evidence of domestic occupation. Super henge is sometimes used as a synonym for a henge enclosure. However, sometimes Super henge is used to indicate size alone rather than use, e.g. "Marden henge ... is the least understood of the four British 'superhenges' ".
Avebury is a Neolithic henge monument containing three stone circles, around the village of Avebury in Wiltshire, in southwest England. One of the best known prehistoric sites in Britain, it contains the largest megalithic stone circle in the world. It is both a tourist attraction and a place of religious importance to contemporary pagans.
The West Kennet Long Barrow, also known as South Long Barrow, is a chambered long barrow near the village of Avebury in the south-western English county of Wiltshire. Probably constructed in the thirty-seventh century BC, during Britain's Early Neolithic period, today it survives in a partially reconstructed state.
The Windmill Hill culture was a name given to a people inhabiting southern Britain, in particular in the Salisbury Plain area close to Stonehenge, c. 3000 BC. They were an agrarian Neolithic people; their name comes from Windmill Hill, a causewayed enclosure near Avebury. Together with another Neolithic tribe from East Anglia, a tribe whose worship involved stone circles, it is thought that they were responsible for the earliest work on the Stonehenge site.
Windmill Hill is a Neolithic causewayed enclosure in the English county of Wiltshire, part of the Avebury World Heritage Site, about 1 mile (2 km) northwest of Avebury. Enclosing an area of 21 acres (8.5 ha), it is the largest known causewayed enclosure in Britain. The site was first occupied around 3800 BC, although the only evidence is a series of pits apparently dug by an agrarian society using Hembury pottery.
Durrington Walls is the site of a large Neolithic settlement and later henge enclosure located in the Stonehenge World Heritage Site in England. It lies 2 miles (3.2 km) north-east of Stonehenge in the parish of Durrington, just north of Amesbury in Wiltshire. The henge is the second-largest Late Neolithic palisaded enclosure known in the United Kingdom, after Hindwell in Wales.
The Sanctuary was a stone and timber circle near the village of Avebury in the south-western English county of Wiltshire. Excavation has revealed the location of the 58 stone sockets and 62 post-holes. The ring was part of a tradition of stone circle construction that spread throughout much of Britain, Ireland, and Brittany during the Late Neolithic and Early Bronze Age, over a period between 3300 and 900 BCE. The purpose of such monuments is unknown, although archaeologists speculate that the stones represented supernatural entities for the circle's builders.
Combe Hill is a causewayed enclosure, near Eastbourne in East Sussex, on the northern edge of the South Downs. It consists of an inner circuit of ditches and banks, incomplete where it meets a steep slope on its north side, and the remains of an outer circuit. Causewayed enclosures were built in England from shortly before 3700 BC until at least 3500 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. The historian Hadrian Allcroft included the site in his 1908 book Earthwork of England, and in 1930 E. Cecil Curwen listed it as a possible Neolithic site in a paper which attempted to provide the first list of all the causewayed enclosures in England.
Hambledon Hill is a prehistoric hill fort in Dorset, England, in the Blackmore Vale five miles northwest of Blandford Forum. The hill itself is a chalk outcrop, on the southwestern corner of Cranborne Chase, separated from the Dorset Downs by the River Stour. It is owned by the National Trust.
Robin Hood’s Ball is a Neolithic causewayed enclosure on Salisbury Plain in Wiltshire, England, approximately 5 miles (8 km) northwest of the town of Amesbury, and 2+1⁄2 miles (4.0 km) northwest of Stonehenge. The site was designated as a scheduled monument in 1965.
Figsbury Ring is an 11.2 hectare biological Site of Special Scientific Interest in Wiltshire, England, notified in 1975. It is owned and managed by the National Trust.
C. Joshua Pollard is a British archaeologist who is a professor of archaeology at the University of Southampton. He gained his BA and PhD in archaeology from the Cardiff University, and is a specialist in the archaeology of the Neolithic period in the UK and north-west Europe, especially in relation to the study of depositional practices, monumentality, and landscape. He is a Fellow of the Society of Antiquaries of London
The Trundle is an Iron Age hillfort on St Roche's Hill about 4 miles (6 km) north of Chichester, West Sussex, England, built on the site of a causewayed enclosure, a form of early Neolithic earthwork found in northwestern Europe. Causewayed enclosures were built in England from shortly before 3700 BC until at least 3500 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. Hillforts were built as early as 1000 BC, in the Late Bronze Age, and continued to be built through the Iron Age until shortly before the Roman occupation.
Whitehawk Camp is the remains of a causewayed enclosure on Whitehawk Hill near Brighton, East Sussex, England. Causewayed enclosures are a form of early Neolithic earthwork that were built in England from shortly before 3700 BC until at least 3500 BC, characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, or meeting places, or ritual sites. The Whitehawk site consists of four roughly concentric circular ditches, with banks of earth along the interior of the ditches evident in some places. There may have been a timber palisade on top of the banks. Outside the outermost circuit there are at least two more ditches, one of which is thought from radiocarbon evidence to date to the Bronze Age, about two thousand years after the earliest dated activity at the site.
Knap Hill lies on the northern rim of the Vale of Pewsey, in northern Wiltshire, England, about a mile north of the village of Alton Priors. At the top of the hill is a causewayed enclosure, a form of Neolithic earthwork that was constructed in England from about 3700 BC onwards, characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known: they may have been settlements, or meeting places, or ritual sites of some kind. The site has been scheduled as an ancient monument.
Alexandra Bayliss is a British archaeologist and academic. She is Head of Scientific Dating at Historic England, and a part-time Professor of Archaeological Science at the University of Stirling in Scotland. Her research focuses on the construction of exact chronologies of European Neolithic archaeological sites, through the application of Bayesian statistical modelling of radiocarbon dates.
Barkhale Camp is a Neolithic causewayed enclosure, an archaeological site on Bignor Hill, on the South Downs in West Sussex, England. Causewayed enclosures were built in England from shortly before 3700 BC until at least 3500 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. The Barkhale Camp enclosure was first identified in 1929, by John Ryle, and was surveyed the following year by E. Cecil Curwen, who listed it as a possible Neolithic site in a 1930 paper which was the first attempt to list all the causewayed enclosures in England.
Offham Hill is a causewayed enclosure near Lewes, East Sussex, England. Causewayed enclosures were built in England from shortly before 3700 BC until about 3300 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites. The site was identified as a possible causewayed enclosure in 1964 by a member of the Sussex Archaeological Society. The Ordnance Survey inspected the site in 1972 and recommended an excavation, which was carried out in 1976 by Peter Drewett.
Court Hill is a causewayed enclosure in West Sussex. Causewayed enclosures were built in England from shortly before 3700 BC until about 3300 BC; they are characterized by the full or partial enclosure of an area with ditches that are interrupted by gaps, or causeways. Their purpose is not known; they may have been settlements, meeting places, or ritual sites.
