We had all but given up finding any more of the panels in this field and were heading for the next group when I spotted this small stone as I passed it.
The block is a free-standing block that looks as if it has been quarried or lifted out of the ground and placed in its current position.
There is a single cup-and-ring motif placed roughly centrally on its upper surface.
I must apologise for the quality of my pictures of this stone as my lens was covered in water and I didn't realise - everything looked fine through the viewfinder.
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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.