After being taken to the location of this panel by a lad from the farm I was very disappointed. There are two huge outcrops, one either side of a track, that have zillions of what look like natural cup marks. The outcrop to the east of the track is huge and after scouring it for 15 minutes without luck I moved on to the other one.
After another 10 minutes I was about to give up when I saw the faintest of rings around a cup mark. Then, after pouring water over the slab, more motifs became visible ... just. This panel really is badly eroded. I managed to pick out a cup with three rings and three cups with two rings. These lie to one side of a large fisure that runs across the panel. A little later I noticed another cup with two rings on the other side of the crack.
To make it easy for people to locate the carved panel - it is below the second fence post from the track.
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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.