'Sib's Stone' : Miscellaneous Site

Grid RefJ 202 923
GPSJ 20191 92300 (6m)
Longitude6° 7' 56.95" W
Latitude54° 45' 51.04" N
ITM east480366
ITM north584435
Nearest TownAntrim (7.4 Km)
OS Sheet14
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 30th September 2007

When I saw Sib's Stone on the OS map I didn't know what to expect and reaching it seemed easier than I had anticipated. This large glacial eratic lies in a field just outside the Slievenacloy Nature Reserve on top of a small knoll.

I have no idea about any of its history. Why it deserves a name I do not know. If anyone can tell me anything at all about please use the contact page to do so. I would be very grateful.

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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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