Sperrin Sedgewater Landscape
Archived: 2 October 2026
30,375 BCE is a modern label rather than a precisely datable Irish event. Derryvree, County Fermanagh, preserves freshwater sediments between glacial tills, calibrated broadly to 36,900–31,700 cal BP, indicating treeless tundra, wetlands and severe periglacial conditions before renewed ice advance. Castlepook Cave, County Cork, contains MIS 3 remains of cold-adapted, open-country fauna, though its mixed deposits require caution. A possibly cut-marked reindeer bone may indicate brief human activity, but proves neither settlement nor society. No evidence supports agriculture, trade, communities or political life. Later glaciation obscured much evidence; Ireland’s record chiefly reveals changing ice, water, vegetation and animals over time.