Lugmore : Cist

CountyDublin
Grid RefO 059 248
GPSO 05945 24840 (5m)
Longitude6° 24' 43.46" W
Latitude53° 15' 48.01" N
ITM east480366
ITM north584435
Nearest TownTallaght (4 Km)
OS Sheet50
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 19th March 2006

This really is a hidden treasure! Driving along the N81 (Blessington Road) I have looked up many times at this hill and wanted to visit the barrow on its summit, which I thought I could easily see. However, now I have been there I now that the bump on the top is not the barrow itself, but the earthworks that have been built to mark the lip of a quarry.

To one side of this bank there is a trig point (which shows that the bank isn't very old, otherwise the trig point would on top of it.) Just over the field wall from the trig point is this amazing burial chamber. Sunk into the ground four large slabs form an open topped box 1m long and 80cm wide. It is at least 70cm deep, but as the bottom is filled with rocks it's hard to say. The long axis of the cist aligns north-south and actually points directly at the cairn at Knockannavea (County Dublin).

What really makes this site special is the fact that the capstone is lying next to the open grave. This has simply been levered off, tipping it upside down in the process. It looks like a giant beached turtle. The exposed underside is flat, whereas the top is domed.

The large rock used to form the roof of a portal tomb or kist.

Click Thumbnail to View Full Size Image

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About Coordinates Displayed

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.

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