Moneygashel : Portal Tomb

Grid RefH 061 340
GPSH 06072 34023 (3m)
Longitude7° 54' 24.57" W
Latitude54° 15' 17.77" N
ITM east480366
ITM north584435
Nearest TownSwanlinbar (14.8 Km)
OS Sheet26
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Sunday, 29th June 2008

I'm sure most people know I love a good portal tomb and this is a good portal tomb. Admittedly, it's not in great shape, but it looks as though it has a more recent history in the same way that The Calf House (County Cavan) does nearby. This, too, seems to have been used as a shed of some kind. In front of the chamber there is a low drystone wall with a lintelled gap that allows entry inside.

The capstone is a monster - 4m x 4m - and now rests on the rubble at the rear and the sole remaining portal stone at the front. There is at least one side stone visible inside and a few of the larger stone in there could be the remains of other structural parts. The portal stone is well over 3m tall, so when the capstone was in place this would have been very imposing.

The walls around the site are generally quite thin, except for the one that runs away behind the chamber. I think that this thicker wall might actually be the original cairn to the monument. Adding weight to this there are some slabs 30m from the chamber that mey be the remains of a cist.

The site is quite high up and has great views along the valley below. If you go to the nearby cashel head up the hill and see this great site.

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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