Ballyvoy : Passage Tomb

Grid RefD 158 418
GPSD 15828 41752 (6m)
Longitude6° 10' 48.92" W
Latitude55° 12' 33.27" N
ITM east480366
ITM north584435
Nearest TownArmoy (12.7 Km)
OS Sheet5
UTM zone29U
UTM x449041
UTM y5761192

This is a subsite of:

Ballyvoy - Court Tomb
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Visit Notes

Sunday, 18th February 2007

This site overlooks a court tomb, which is built on the slopes to the southwest (see Ballyvoy (County Antrim)). To the north you look out over Rathlin Island and you can see Scotland in the distance.

Three low stones in the centre of the well-preserved kerb are all that remains of the central chamber. None of these stands more than 20cm above the grass. The kerb is almost complete, with only a few gaps. The tallest stones are 40cm or so high. The whole monument is approximately 18m in diameter.

As well as the views to towards Scotland and Rathlin Island there are good views to the south where Knocklayd Mountain stands proud.

A kerb is a ring of stones placed around the perimeter of a burial mound or cairn. It basically serves the purpose of a retaining wall to keep the cairn or earth in place. Kerbs are usually associated with passage tombs, but do occur on court tombs and wedge tombs too.

Sometimes on passage tombs the stones can bear decoration, such as at Newgrange (County Meath).

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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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