24/06/2026
Midsummer sunset viewed from Cairn H at the Carrowkeel Megalithic Cemetery. This passage-grave was constructed on a large platform like Listoghil, the central passage-grave at the Carrowmore Megalithic Cemetery. The alignment of the passage was changed during the neolithic, changing the focus from the extreme Lunstice setting position of the moon, which occurs every 18.6 years, to the midsummer sunset.
Cairn H has a double kerb, the only such feature known at the Carrowkeel Megalithic Cemetery. Genetic research has discovered a link between a man buried in the central passage-grave at the Carrowmore Megalithic Cemetery, people buried in Carrowkeel, and the man buried in Brú na Bóinne - Newgrange.
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