The only image of these stones I have ever seen was taken about 20 years ago, so I knew that it probably would have eroded quite badly in the meantime. Still, it's such an intriguing monument that seeing it was worth the effort.
There are two stones here, one lying on top of the other. The bottom stone is over 1m tall and 1m square in plan. The upper surface of this was, at one time, covered in zillions of cup-marks. The one that are exposed to the elements have eroded as I'd expected.
The upper stone has been laid so that its carved surface faces downwards, thus protecting the motifs. There is enough of a gap between the two stone to allow you to feel a very nice-feeling spiral. If you squint between the stones you can just about make it out.
There's a small feeling of disappointment and frustration at not being able to see this surface properly, but it's good that it has been protected from the weather.
I had a little difficulty finding this site. It's not marked on the OS map, nor is it signposted at the road - which it stands within 10m of!
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.