This is a lovely little monument that has several features. Firstly the cist is built into an ancient wall that runs along the spine of the ridge the cist sits on. Then, next to the cist there is a small standing stone. Which of the three items came first is hard to say, but it was probably the cist and standing stone.
The views from here are wonderful. You can see westward out to sea and down onto the six portal tombs below and then east up the valley where you can identify the locations of most of the other portal tombs in the townland.
The cist has been opened on one side and its capstone is still in place. The 75cm tall standing stone is set just to the south of the cist.
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.