Murnells : Cairn

Grid RefH 680 757
Longitude6° 56' 49.49" W
Latitude54° 37' 29.43" N
ITM east480366
ITM north584435
Nearest TownMoneymore (19.4 Km)
OS Sheet13
UTM zone29U
UTM x449041
UTM y5761192

This is a subsite of:

Murnells - Portal Tomb
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Visit Notes

Sunday, 8th January 2006

As I was leaving the field that contains the portal tomb ( Murnells (County Tyrone)) I noticed a round mound. Looking on the top I could see some large stones so I took some photos thinking it may be a cairn. After doing a search of various databases it is a cairn!

It is roughly 1.5m high and 6m in diameter. The large stones poking through the top could be the remains of burial cists.

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Like this monument

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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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