Gorteen : Portal Tomb

Grid RefG 738 510
Longitude8° 24' 12.68" W
Latitude54° 24' 24.59" N
ITM east480366
ITM north584435
Nearest TownGrange (7.8 Km)
OS Sheet16
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 17th August 2003

This one is a completely collapsed mess. The only stone that can be identified for definite is one portal stone, because it is nearly standing up still.

Several thorn trees add further complication to the monument, because they have pushed the stones about as they've grown through the remains.

It stands in some very, very boggy and reedy land. I got soaked reaching it following a very heavy downpour. Except to tick this one off the list it wasn't worth the effort, apart from one thing.

Ages ago I drove down a road near here and noticed Benwiskin Mountain. This to me looks like a tormented head screaming, forcing its face towards the sky. It immediately struck me a very powerful image and I felt sure that it must have been revered in the distant past. Well, from this location the effect is even more dramatic.

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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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