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🇮🇪 Ireland · Megalith
Middle Neolithic – Bronze Age · Carrowmore passage/boulder tradition (early)
Ireland's largest cemetery — ~30 boulder dolmens around Listoghil passage tomb (3600 BCE), oldest on Cúil Irra peninsula.
🇮🇪 Ireland · Megalith
Late Neolithic · Loughcrew-Carrowkeel passage tradition (Boyne variant)
14 hilltop passage cairns (10–21 m) on Bricklieve ridges above Lough Arrow, with cruciform chambers and light boxes.
🇮🇪 Ireland · Megalith
Early Neolithic · Court Tomb tradition (Western Neolithic Ireland)
55.5 m court tomb on Sligo coast — 13×10 m oval court to twin gallery, best preserved in northwest.
