'Reanacaheragh' : Boulder Burial

Grid RefW 318 627
Longitude8° 59' 20.48" W
Latitude51° 48' 45.17" N
ITM east480366
ITM north584435
Nearest TownCrookstown (11.3 Km)
OS Sheet86
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

Sunday, 23rd June 2002

My first proper, definite boulder burial! This is really nice. The huge boulder sits on top of 5 or six set stones that form a mini-chamber below. There is a small kerb running around its circumference.

The boulder is an impressive one. 1.5m long and 1.1m at its thickest. There are three cups or solution pits in the upper surface.

I was impressed and will make the effort to see more of these now.

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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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