'Derrynablaha 13' : Rock Art

Grid RefV 764 773
GPSV 76384 77295 (5m)
Longitude9° 47' 51.17" W
Latitude51° 56' 3" N
ITM east480366
ITM north584435
Nearest TownSneem (12.8 Km)
OS Sheet78
UTM zone29U
UTM x449041
UTM y5761192
Hide map  (N.B. Google Maps & GPS readings are slightly out of sync - position is approximate)
Show inline map (by Google Maps)

Visit Notes

Saturday, 15th September 2007

This is another massive panel. It is nearly 3m across and over 2.5m deep. The top of the stone slopes to the west, so when you look at the carved surface you also look directly at the mountain pass to the east.

The carvings are grouped towards the southern end of the panel. There are many cup-and-ring motifs and a lot of single cup marks. Unfortunately, the panel is covered in white lichen, which makes it almost impossible to get any contrast on photographs. I'm not even sure that Ken William's amazing side flash technique will make these carvings stand out.

Click Thumbnail to View Full Size Image


Sunday, 18th November 2007

Visiting this stone again made me realise how lucky I was to see it the first time around. The markings really are faint.

This time I was able to use my flash setup to better advantage and capture some of the markings, although I still haven't got the technique right with them. Oh well, I'll just have to visit more panels and practice!

Click Thumbnail to View Full Size Image


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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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