Derryvree’s Mosses and Mammoths
Archived: 20 September 2026
31,004 BCE is a modern label within a broad, uncertain Ice Age interval, not a recoverable historical year. At Derryvree, County Fermanagh, freshwater silts between glacial tills indicate a locally ice-free episode, preserving mosses, sedges, aquatic plants and tundra vegetation in wet, treeless conditions. Castlepook Cave, County Cork, contains a long, mixed fauna including mammoth, reindeer, giant deer, hyena and other cold-adapted animals, demonstrating intermittent ecological connections with north-west Europe. A cut-marked reindeer bone may indicate early human butchery, but proves neither settlement nor continuous occupation. Subsequent ice expansion buried or destroyed many landscapes, leaving fragmentary regional evidence for historians.