Set in the bottom of dip these two stones, which appear to be a male and female pair, are really worth a visit.
One has been repaired where it has broken off - a nice surprise that someone has taken the time to do it!
The taller of the two stones is just under 2m tall. The other is around 1.8m high. The axis of the pair is roughly north-south. Looking south they align to a distant dip in the Mourne Mountain skyline. Looking north they align with the top of Deehommed Mountain.
The 'male' stone (the southernmost one) is set so that its own long axis is not inline with the axis of the row. A line through this stone's axis points to a low point in the near skyline to the northwest.
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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.