'Gigmagog's Grave' : Court Tomb

Grid RefC 907 373
GPSC 90728 37321 (7m)
Longitude6° 34' 33.1" W
Latitude55° 10' 28.89" N
ITM east480366
ITM north584435
Nearest TownBushmills (5 Km)
OS Sheets4, 5
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 18th February 2007

I had meant to stop here earlier in the day, but I forgot. I simply had to visit the site because of its name - a rare reference to the god(s) Gog-ma-gog, made famous by T.C. Lethbridge.

The tomb is tucked away in the corner of a field right next to the road. There is very little of the court left, but the gallery is quite well preserved, albeit a little scruffy. There are two large capstones and some grass-covered cairn material reaches the top of the gallery orthostats. The gallery is about 4m long, but a field wall has been built across the back of it, so that it is very difficult to be sure. There are a few loose large stones in front of the gallery that were presumably from the court.

The hedgerow that separates the tomb from the road cuts off all the views to the south and west. The tomb is built at the base of a gentle southwest facing slope, so there is no view to the north or east.

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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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