This signposted monument is an absolute disgrace. It lies close to the road, has its own horse gate for easy access and is signposted from several junctions away. This is often a good sign that you will be able to see something when you reach it. This is not the case here. When you do finally reach it you walk through the little gate and deflate.
All you can see is a high pile of weeds and brambles. Just one of the court stones (I think) and a roofstone (I think) poke out through the undergrowth. I'd had enough. I decided to head home.
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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.