Description - Castleruddery is a small stone circle (30m diameter), with two 15-ton, white-quartz portal-stones, which appear either fallen or 'recumbent'. 

The site has a curious air to it, because of the proportionately large number of stones for such a small circle, and which appear to line the inside of an embankment. Outside of this bank there was once a ditch, and then another earth-bank, making this site a concentric, henged, recumbent stone circle.

Of particular interest at the site are the various excellent examples of prehistoric masonry, which shows how the stones were prepared before being used and simultaneously provides clues to the methods whereby such stones were crafted. It is of interest that the stone-masons here show the same exact skills as those in Carnac France, for example, which has several connections to the Boyne valley builders, and others in Europe.

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This means of cutting hard stone can be seen all around the ancient world, from Europe to Egypt and even south America. This is just one of many 'signature' construction techniques adopted by the megalithic builders.

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