Megalithic tomb - passage tomb, Bremore, Co. Dublin
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Megalithic Tombs
At the mouth of the River Delvin, where the land meets the sea on the north Dublin coast, a low pear-shaped mound sits in a field that has not been kind to it.
Ploughing has worn it down, a field boundary has cut into its western side, and the exposed edge reveals something unexpected: a core of water-rolled beach material, the kind of rounded stone gathered from the shoreline, suggesting that whoever built this structure carried material up from the water's edge. It measures roughly fifteen metres north to south, eight and a half metres east to west, and rises to only about a metre in height, which is modest even by the standards of a monument that has clearly lost ground to centuries of agricultural activity.
The mound is catalogued as Mound IV within what is known as the Bremore cemetery, a grouping of prehistoric monuments identified by Rynne in 1960. It has been listed as a possible passage tomb, a type of Neolithic burial monument in which a stone-lined corridor leads to a central chamber, typically covered by a large earthen or stone cairn. The classification here carries some uncertainty: a geophysical survey carried out under licence in 2006, reported by Gimson, did not return specific structural detail from beneath the mound, meaning the internal architecture, if any survives, remains unresolved. The site has attracted further scrutiny in more recent years, including a constraint study by Margaret Gowen and Company Ltd. ahead of a proposed port development in the area, and fieldwalking and lithic analysis undertaken as part of an MA study by Collins in 2007. The monument is protected under a preservation order made under the National Monuments Acts 1930 to 2014.
The site sits on the coast, so the approach carries a sense of the shoreline even before you reach the mound itself. The western edge, where the field boundary truncates the monument, is the most visibly disturbed part, and the exposed beach material can be seen there if conditions allow. Because the mound is low and has been reduced by ploughing, it does not announce itself dramatically from a distance; knowing what to look for matters. Visitors should be aware that it is a protected monument and treat it accordingly, keeping to the margins and avoiding any disturbance to the surface.