Rathgeran Upper : Rock Art

Grid RefS 793 472
GPSS 79270 47219 (6m)
Longitude6° 49' 50.58" W
Latitude52° 34' 14.08" N
ITM east480366
ITM north584435
Nearest TownKiltealy (5.8 Km)
OS Sheet68
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Saturday, 3rd November 2007

This panel measures 1.5m x 1m and is now incorporated into a field wall. It faces north, so as I approached it was in shadow. I soon started to find out where the motifs are on the surface by feeling around. They are roughly located all over it! There are at least 12 cup and ring motifs on this stone. One of them has two rings and a gutter. I didn't manage to capture the gutter properly in any of my pictures.

There is a line of four cup and rings down one edge. The rings around two of these intersect each other, making them look like a figure of eight. There are three similar pairs of cup and rings.

Photographing these with a flash doesn't really do them justice, but unless the sunlight is slanting across the stone perfectly it is the only way that the carvings will stand out.

Click Thumbnail to View Full Size Image


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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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