Drumhallagh : Bullaun Stone

CountyDonegal
Grid RefC 294 323
GPSC 29380 32275 (3m)
Longitude7° 32' 21.41" W
Latitude55° 8' 12.5" N
ITM east480366
ITM north584435
Nearest TownRathmullan (4.8 Km)
OS Sheets2, 3
UTM zone29U
UTM x449041
UTM y5761192

This is a subsite of:

Drumhallagh - Grave or Cross Slab
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Visit Notes

Saturday, 31st July 2010

This bullaun stone is one of the smallest around, but its association with the beautiful Drumhallagh cross slab (see parent site) makes it rather special in my eyes.

The stone, with its 20cm basin is located at the base of the mound supporting the slab at the end furthest from the gate. You may have to hunt in the grass for it, I did.

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A Selection of Other Bullaun Stones

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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