Piperstown : Cairn

CountyDublin
Grid RefO 107 220
GPSO 10741 21997 (7m)
Longitude6° 20' 28.36" W
Latitude53° 14' 12.56" N
ITM east480366
ITM north584435
Nearest TownTallaght (5.6 Km)
OS Sheet50
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Saturday, 27th May 2006

This is the central cairn of the three shown on the OS map. It would have been by far the largest and most impressive of the group. Although no cairn rubble remains the large kerb stones can be seen in the heather. These are each about 1.2m long, but buried too much into the peat to know how tall they are.

I'm not sure why, but I really like this ragged monument. It has to have something to do with the stunning views up the Glenasmole Valley. While I was here I bumped into three archaeology students re-mapping the sites on the hill. It was great to see someone taking a keen interest in Piperstown. So often, once an area has been excavated it is then disgarded and considered 'dealt with.'

There is a pre-bog wall that runs across the top of the hill above the cairns.

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.

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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Like this monument

Marked Sites

Random Gazetteer

A Selection of Other Cairns

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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