Clonasillagh : Rock Art

Grid RefN 639 803
Longitude7° 1' 50.95" W
Latitude53° 46' 6.05" N
ITM east480366
ITM north584435
Nearest TownMullagh (7.3 Km)
OS Sheet35
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Monday, 3rd June 2002

After King's Mountain (County Meath) I was probably expecting too much from this stone, marked on the OS as 'decorated stone'. It is in fact one of several stones that remain of a tomb kerb, but is not of the same calibre as King's Mountain unless there is a lot more markings beneath the moss.

On the inner face are at least 7 shallow cup marks scattered in a seemingly random fashion. Still, nice one to find and verify its existence.

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Like this monument

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A Selection of Other Rock Art

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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