'Carrowmore Tomb 13' : Passage Tomb

TownlandCarrowmore
CountySligo
Grid RefG 664 338
Longitude8° 30' 55.99" W
Latitude54° 15' 6.72" N
ITM east480366
ITM north584435
Nearest TownSligo (3.6 Km)
OS Sheet25
UTM zone29U
UTM x449041
UTM y5761192

This is a subsite of:

Carrowmore - Passage Tomb Cemetery
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Visit Notes

Sunday, 29th December 2002

This tomb looks like a baby portal tomb and stands at the roadside to the east of a t-junction. It consists of just the chamber now, but it still retains its rounded roof stone supported by several orthostats, one of which protrudes from under the roof stone.

There is no kerb or other indication of the size of the complete monument.

Portal tombs are what most people wrongly refer to as dolmens. They are, to me at least, the most strikingly designed of the megalithic tombs. They are called portal tombs because they have two large upright stones, usually very well matched, in front of the chamber that seem to form a doorway.

Resting upon the portal stones and the chamber a large capstone rests (sometimes there are two capstones - see Knockeen (County Waterford)), usually at an angle of around 22 degrees from the horizontal. Although these were originally incorporated into one end of a long cairn there are none left in this state today, although traces of the cairn can sometimes be seen upon the ground. The portal stones can be up to 3.5m tall, which combined with a thick capstone can produce an imposing monument over 5m tall. Capstones can reach in excess of 70 tonnes, with that of Browne's Hill (County Carlow) being estimated at over 120 tonnes.


Often betwen the portal stones there is a door slab, blocking the width of the entrance, but not always the full height. Door slabs are either half height, three quarter height or full height, describing the amount of the portal that they obstruct. All portal tombs would have had door slab, but this has often been removed to facilitate entry into the chamber.

Quite rarely the portal stones are the same height as the chamber and the characteristic slope of the capstone is created by the profile of the capstone (see Glendruid (County Dublin)).

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Sunday, 4th May 2003

Rushing about in the rain on my previous visit I didn't really look at this tomb - it was a quick hop over the style, take a few photos and back in the car. This time I had a good wander around it. It really does look like a crawling hermit crab from the west.

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Like this monument

Marked Sites

Random Gazetteer

A Selection of Other Passage 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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