Tamlaght : Portal Tomb

Grid RefH 886 790
Longitude6° 37' 37.92" W
Latitude54° 39' 4.63" N
ITM east480366
ITM north584435
Nearest TownMoneymore (5.2 Km)
OS Sheet14
UTM zone29U
UTM x449041
UTM y5761192
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Visit Notes

Saturday, 27th July 2002

Whilst on the way to this I was warned that we were heading for an ugly portal tomb. It would seem that the tomb itself has heard this oppinion and has taken to hiding beneath the hedgerow and ivy. All we could see was a tiny section at the base of the large, narrow capstone.

A quick scramble trough the field behind it bore no fruit either as there is a very large concrete water tank built right next to it, blocking all access.

From the road side of the tomb you can just make out the low entrance to the chamber, visible below the strangly recessed bottom edge of the capstone. The portal stones are very short, not even coming above waist height, but the colossal depth of the capstone makes the top of the monument around 4m tall.

I would love to see this one exposed so that I can see just how ugly it is and to see the exact shape of its intriguing capstone.

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Like this monument

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Old Images

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Random Gazetteer

A Selection of Other Portal Tombs

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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