The walk to this site is a little tricky. To get here you must walk along a very bumpy and boggy firebreak: at one point I sunk into the ground to above my knees!! Eventually, after much cursing and wetness, you reach an open area in the forest to the left of the firebreak and the tomb is 100m or so into this glade.
It's hard to tell what is still there until you actually reach it - all you can see as you approach is a mound with lots of trees on it. The mound is around 2m tall, 35m long and a little over 10m wide.
It appears that this tomb has never been opened and that the gallery lies undisturbed below the cairn . The mound is aligned east-west with the fairly overgrown court being visible at the east end. This is wineglass-shaped, withe straight tapering sides.
I think the court faces Big Dog, the ridge to the east with The Giant's Stone (County Fermanagh) on the top, but the forest unfortuately cuts out this view.
In wedge tombs and court tombs the burial compartment is known as a gallery and collectively wedge and court tombs are called classified as 'gallery graves'. This is because the inner area is long and narrow, i.e. bascially rectangular, in plan.
In court tombs the gallery is usually divided into two or more chambers by jambs. Wedge tombs are segmented by sill stones, as are a few court tombs.
A cairn is a large pile of stones, quite often (but not always) containing a burial. Sometimes they have a kerb around the base.
Most cairns are hemi-spherical (like half a football), but the piles of stones used to cover wedge tombs, court tombs and portal tombs are also called cairns. When associated with these types of monument they are not always round, but sometimes rectangular or trapezoidal.
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.