'Spahill 4' : Rock Art

Grid RefS 759 511
GPSS 75855 51061 (7m)
Longitude6° 52' 48.71" W
Latitude52° 36' 20.11" N
ITM east480366
ITM north584435
Nearest TownBorris (3.4 Km)
OS Sheet68
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 4th November 2007

It's amazing that so much rock art can be in one area. The presence of this stone went unnoticed for decades, until the landowner just happened to pass it when the sun was just shining across it at the right angle.

The stone is an earthfast bouler about 3m long and 1.5m across. Its upper surface is asymmetrically curved, forming a ridge 2/3 along its length. It is upon this ridge that 4 cup marks can be seen ... just ... if you squint hard at them. It is very worn.

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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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