Aughnagurgan : Passage Tomb

CountyMonaghan
Grid RefH 870 286
Longitude6° 40' 0.34" W
Latitude54° 11' 55.94" N
ITM east480366
ITM north584435
Nearest TownKeady (6 Km)
OS Sheets28, 28B
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 16th June 2002

This is in a sorry state. A few stone that may be from a kerb are present, poking through the mud and the stones that may define the chamber and very short passage are visible too.

What I assume is the backstone to the chamber has a thin quartz face. The passage would have been just over 1m or so in length and very narrow, although the road that is right in front of it may well have shortened it considerably. It would seem to face directly towards a low hillock or drumlin to the north west, which if true would have been a very nice marker for the summer solstice sunset.

When we were preparing to climb into the field the farmer pulled up for a chat. He said that not many people bother to visit these tombs (from their condition it is hardly surprising really), once again proving how little people get out to some of the more remote and quiet places in Ireland.

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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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