'Greatheath II' : Barrow

Grid RefN 521 010
GPSN 52141 01010 (3m)
Longitude7° 13' 20.12" W
Latitude53° 3' 26.01" N
ITM east480366
ITM north584435
Nearest TownPortlaoise (5.9 Km)
OS Sheet55
UTM zone29U
UTM x449041
UTM y5761192

This is a subsite of:

The Great Heath - Greatheath - Barrow Cemetery
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Visit Notes

Sunday, 11th April 2010

There are actually two conjoined barrows here, but the damage is so extensive to one of them that it's hard to spot it, especially with the gorse growing on the remains.

One of them, the larger one that you can see easily, has had its east side sliced off by a rough track. Gorse covers its banks and central mound, but there is a gap between the two allowing you to trace out the ditch around the slightly raised central area. The central mound is about 6m across. The outer bank is over 50cm high and the ditch is 1m wide.

If the site was to be cleared then it would be an interesting site. As it stands it's a bit of a mess.

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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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