Stone circle

A stone circle is a ring of megalithic standing stones. Most are found in Northwestern Europe – especially in Britain, Ireland, and Brittany – and typically date from the Late Neolithic and Early Bronze Age, with most being built between 3300 to 2500 BC. The best known examples include those at the henge monument at Avebury, the Rollright Stones, Castlerigg, and elements within the ring of standing stones at Stonehenge.^[1] Scattered examples exist from other parts of Europe. Later, during the Iron Age, stone circles were built in southern Scandinavia.

The archetypical stone circle is an uncluttered enclosure, large enough to congregate inside, and composed of megalithic stones. Often similar structures are named 'stone circle', but these names are either historic, or incorrect. Examples of commonly misinterpreted stone circles are ring cairns, burial mounds, and kerb cairns. Although it is often assumed there are thousands of stone circles across both Britain and Europe, such enclosures are actually very rare, and constitute a regional form of henge.^[1] Examples of true stone circles include, Cumbrian circles, henges with inner stones (such as Avebury), and Cornish stone circles.

Stone circles are usually grouped in terms of the shape and size of the stones, the span of their radius, and their population within the local area. Although many theories have been advanced to explain their use, usually related to providing a setting for ceremony or ritual, no consensus exists among archaeologists regarding their intended function. Their construction often involved considerable communal effort, including specialist tasks such as planning, quarrying, transportation, laying the foundation trenches, and final construction.^[2]