[1] The site is referred to as a cromlech by analogy with similar monuments in Western Europe, but it is the only structure of its kind known in the country.
[1] The circle consists of vertical, roughly-shaped, blocks of local hard volcanic rock (rhyodacite).
[2] One is a 3-metre-wide oval enclosure constructed out of stones located around 15 metres southeast of the cromlech.
[3] These date the construction of the cromlech to the second phase of the Early Iron Age (8th–6th centuries BC).
[3] The two stone enclosures were in use around the same time, and finds of burnt human bone suggest a funereal use.