Clegnagh : Passage Tomb

Grid RefD 025 437
GPSD 02497 43652 (4m)
Longitude6° 23' 20.07" W
Latitude55° 13' 45.29" N
ITM east480366
ITM north584435
Nearest TownBushmills (8.9 Km)
OS Sheet5
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 30th December 2007

You can see this little wonder from the roadside parking area below. It sits proudly on the top of a small, sharp knoll. Sadly, some of this 'sitting tall' effect is caused by the fact that the front of the knoll has been quarried away such that the tomb's small chamber now perches precariously on its edge. This quarry makes visiting the site quite dangerous, so watch your footing if you venture up to it.

Reaching the tomb is quite easy, but the quarry and thick gorse bushes around on side of it make it difficult to see properly. The capstone is still in place, supported by three orthostats - there were probably five originally. One kerbstone is visible to the west of the chamber and this is nearly as tall as the top of the capstone.

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

Like this monument

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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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