|Athgreany - Standing Stone|
What a climb! This 'rath' is on the edge of a 80m high cliff! I was actually up here to visit the standing stone just 30m north of this earthwork - otherwise I would never have climbed up here.
I have to say that I don't think this is a rath. I think it is a henge . The external bank is higher than the inner surface and the fosse/ditch inside this outer bank doesn't make sense defensively. Being situated overlooking Holywood Glen below the cliffs probably made someone think that it was built to defend the pass, but it's too small and doesn't really have a good view down the whole road below.
The outer bank is upto 1.5m high and 30m in diameter. There is an causeway across the fosse on west side of the enclosure.
This site overlooks The Piper's Stones (County Wicklow) stone circle and offers a view of it that cannot be gained elsewhere, allowing you to appreciate it in its landscape setting.
Henges are circular monuments that are defined by an outer earthen bank with a ditch around the inside. With the ditch on the inside they are obviously useless as defensive structures and so are considered to be of ritual origins.
This is an explanation of (and a bit of a disclaimer for) the coordinates I provide.
Where a GPS figure is given this is the master for all other coordinates. According to my Garmin these are quite accurate.
Where there is no GPS figure the 6 figure grid reference is master for the others. This may not be very accurate as it could have come from the OS maps and could have been read by eye. Consequently, all other cordinates are going to have inaccuracies.
The calculation of Longitude and Latitude uses an algorithm that is not 100% accurate. The long/lat figures are used as a basis for calculating the UTM & ITM coordinates. Consequently, UTM & ITM coordinates are slightly out.
UTM is a global coordinate system - Universal Transverse Mercator - that is at the core of the GPS system.
ITM is the new coordinate system - Irish Transverse Mercator - that is more accurate and more GPS friendly than the Irish Grid Reference system. This will be used on the next generation of Irish OS maps.