Rath Maeve was not actually on my list of places to go on this trip, but as we passed it on the way to Hill Of Tara (County Meath) I thought, why not?. Sadly all that remains of this once great fortress is a well preserved bank near to the road. The cabbage field that it now surrounds maintains the round shape of the original fort and give some idea of the scale of the place. It was big!!! If you are in the area it's worth going to cross it off your list but not worth a special visit.
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I stopped off just to see the place with no cabbages, but it is still a sad monument. With the field empty you get a greater impression of the size of the embankments, though.
Take the N3 from Dublin and turn left after the village of Tara, following the signs for Rath Maeve.
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.